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## Posts

### History quiz

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### Learnpolity

### Hello world!

### jhu

### Top Important Dates in world history

**B.C.**

**A.D.**

### how to 9999*9997 in 5 secs with Base method

**Procedure Do the tricks**

** 7 near base is 10**** **
** 8 ****near base is 10**** **
** 7 -3( it comes 10-7= -3)**
** 8 -2 ( it comes 10-8= -2)**
** 7 -3**
** 8 -2**
** —————————–**
** Either (7+(-2) or (8+(-3) | multliply -3*-2( take result euqal to num of zeros in base)**
** 5 | 6**
** So ans is 7*8 = 56**

**2. Solve 999*996?**

**Ans) **
** 999 -1**
** 996 -4**
** 999 -1**
** 996 -4**
** ——————————–**
** 995 | 4( is the right ans but not because num of zeros in base is 3 so we will take 004)**
** => 9997 -3**
** 9999 -1**
** ——————————–**
** 9996 | 3(**

**So the final answer is 999*996 = 995004**

**3.Find 9997*9999? **

**Ans) **
** 9997 -3**
** 9999 -1**
** => 9997 -3**
** 9999 -1**
** ——————————–**
** 9996 | 3( is the right answer but not because num of zeros in the base is 3 so we will take 004)**
** => 9997 -3**
** 9999 -1**
** ——————————–**
** 9996 | 003**

**So the final ans is 999*996 = 9996003**
### DRDO-CEPTAM has extended date to apply for 21 educational categeries jobs

### Basics of Profit and Loss-Part1

### basics of simplification for SSC UPSC IBPS

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Learnpolity.com Indian polity

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776 : First Olympiad in Greece.

753 : Rome founded.

490 :Battle of Marathon; the Greeks defeated the Iranians/ Persians

327-26 : Invasion of India by Alexander, Battle of Hydaspes

221 : Chin-Hung Ti ‘Univesral Emperor in China, Great Wall of China completed

55 :Invasion of Britain by Julius Caesar the Great Roman General

44 :Assassination of Julius Caesarby Brutus

4 :Birth of Jesus Christ

29 Crucifixion of Jesus Christ

43 Roman conquest of Britain.

570 Birth of Prophet Muhammad at Mecca

622 Migration of Muhammad from Mecca to Medina (‘Fijird), Beginning of Hijira Era

(Muhammadan calender) on July 15

800 Charlemagne crowned Roman Emperor at St. Peter’s.

871 Accession of Alfred the Greatto the throne of Britain

901 Death of King Alfred the Great.

- Find the near base
- divide into two sections
- left side is cross sum and right side multiplication of two values
- for right side we need to take result number should be equal to the number of zeros in base

**For better knowing we will take simple Example**

**1) Solve 7*8? It is easy for this but in the point of large numbers it is useful****Ans) step by step**

**Finding the nearer base**

**Finding the Deviation from Base**

**Next step DO the the third step**

**Near Base is 1000****Finding the Deviation**

**FInd the ans by cross sum and multiplication**

**Near Base is 10000****Finding the Deviation**

**FInd the ans by cross sum and multiplication**

Name of the Exam : DRDO-CEPTAM

Vacancy details As per the categeory

Post Code | Subject | SC | ST | OBC | UR | Total | Code of posting location |
---|---|---|---|---|---|---|---|

0101 | Agriculture | 0 | 0 | 1 | 3 | 4 | H1,L1 |

0102 | Automobile Eng | 0 | 1 | 2 | 3 | 6 | A2,B2,C2 |

0103 | Botany | 0 | 0 | 2 | 1 | 3 | D2,H1 |

0104 | Chemical Eng | 1 | 1 | 1 | 10 | 13 | A3,H2,J1,N1,P2, V1 |

0105 | Chemistry | 3 | 2 | 9 | 10 | 24 | A3,D2,G1,H1,H2, J1,J2,K1,K2,N1, P2 |

0106 | Civil Enginnering | 0 | 0 | 1 | 3 | 4 | A1,D2,H2 |

0107 | Computer Science | 9 | 6 | 24 | 40 | 79 | A1,A2,A3,B1,B2, B3,D2,H2,J2,K2, P1,P2 |

0108 | Electrical & Electronics Engineering | 2 | 1 | 4 | 9 | 16 | B2,B3,C2,H2 |

0109 | Electrical Engineering | 5 | 2 | 8 | 20 | 35 | A2,B1,B2,H2,K2, P1,P2,V1 |

0110 | Electronics & Instrumentation | 1 | 0 | 2 | 4 | 7 | A1,C1,H2 |

0111 | Electronics or Electronics & Communication or Electronics & Telecommunication Engineering | 10 | 8 | 26 | 56 | 100 | B1,B2,C2,D1,D2, H2,J2,K2,M1,P2 |

0112 | Geology | 0 | 0 | 1 | 2 | 3 | D2 |

0113 | Instrumentation | 1 | 0 | 1 | 3 | 5 | B2,J1,N1,P2 |

0114 | Library Science | 0 | 1 | 3 | 7 | 11 | A1,C2,D2,H2,N1, P2 |

0115 | Mathematics | 3 | 0 | 2 | 3 | 8 | D2,M2 |

0116 | Mechanical Engineering | 30 | 9 | 35 | 66 | 140 | A1,A2,A3,B1,B2, C2,D1,D2,H2,J1, K1,K2,N1,P1,P2, V1 |

**CODES OF POSTING STATIONS**: A1=AGRA; A2=AHMEDNAGAR; A3=AMBERNATH(EAST); B1=BALASORE; B2=BENGALURU; B3=BHUBANESWAR; C1=CHANDIGARH; C2=CHENNAI; D1=DEHRADUN; D2=DELHI; G1=GWALIOR; H1=HALDWANI; H2=HYDERABAD; J1=JAGDALPUR; J2=JODHPUR; K1=KANPUR; K2=KOCHI; L1=LEH; M1=MUSSOORIE; M2=MYSORE; N1=NASIK; P1=PANAGARH; P2=PUNE; V1=VISAKHAPATNAM

Age Limit: A) The candidate must be within prescribed age limit on the crucial date of eligibility. However, upper age limit is relaxable for SC, ST, OBC, PWD, ESM, Central Govt. Civilian Employees, Disabled Defence Services Personnel, Persons domiciled in Jammu & Kashmir state during the period from 01-01-1980 to 31-12-1989 as per the rule prescribed by the Government of India. No age relaxation is allowed to SC/ST/OBC candidates applying against unreserved (UR) vacancies. Candidates belonging to PWD, ESM, Central Govt. Civilian Employees, Disabled Defence Services Personnel, Persons domiciled in Jammu & Kashmir state during the period from 01-01- 1980 to 31-12-1989 categories, who are applying against UR vacancies will get age relaxation benefit only for their respective category as above and no additional relaxation will be given for belonging to SC/ST/OBC category (Refer FAQ for further details). B) For relaxation, proforma for certificates may be downloaded (if requireFee required: For Gen: Rs:100/- remaining categeries : nil

REMUNERATION AND SERVICE CONDITION: Pay, as per 7th CPC Pay matrix, at level 6 and other benefits include dearness allowance, house rent allowance, transport allowance, children education allowance, leave travel concession, medical facilities, CSD facility and other allowances/advances. Recruited candidates will be covered under national pension system (NPS) of the government unless provided otherwise as per Govt. of India rules. DRDO has beautiful well laid out green campuses with residential quarters, general amenities & sports facilities at most of the laboratories/ establishments. The recruited candidates will be governed by the central government rules. The personnel policies in DRDO are well laid down. The selected candidates will be appointed on probation and are liable to serve anywhere within limits of union of India including field locations / remote areas, as and when required, as per Govt. of India rules. These posts are covered under merit based limited flex

RESERVATION/RELAXATION BENEFITS: A) Reservation/ relaxation benefits regarding age, minimum qualifying criteria etc. are applicable to the SC/ST/OBC/PWD etc. candidates applying against vacancies earmarked for them, in accordance with the instructions/orders / circulars, as per extant Govt. of India orders. All candidates applying against unreserved (UR) vacancies will be treated as general candidates. B) Candidates seeking reservation/relaxation benefits must support their claim with duly selfattested copies of relevant certificates issued by Govt./notified competent authority, at the time of submitting online applications and document verification or whenever required by DRDO, else their claim for any relaxation/concession etc. will not be considered and their application will be treated under unreserved category. C) A candidate seeking reservation/ relaxation benefits of OBC must ensure that he/she possess a genuine caste/ community certificate in central Govt. format and does not fall in creamy layer on the crucial date of eligibility. D) Candidates with physical disability of 40% and more only would be considered as person with disability (PWD) and entitled to reservation for PWD. E) It may be noted that, candidature will remain provisional till the veracity of the concerned documents are verified/reverified by the appointing authority.

3.1 HOW TO APPLY: Candidates must satisfy themselves, before applying, about their eligibility for the post. Candidates are, therefore, urged to carefully read the advertisement and complete the application form and submit the same as per the instructions to avoid rejection later. A) All candidates must apply online through the link available on CEPTAM notice board (https://www.drdo.gov.in/drdo/ceptam/ceptamnoticeboard.html). Applications received by any other mode will be summarily rejected. B) The online application portal will be opened on 04 August 2018 and closed on 13 Sep 2018 (05:00 PM). C) Firstly, the candidate must register online by filling up the basic details. After registration, the candidate will get a user Id & password (note it down & keep safely), which will be used to login for filling of application. D) Candidates are advised not to wait until last date to submit their applications. CEPTAM will not be responsible, if candidates are not able to submit their applications on time due to last minute heavy rush, network congestion etc. E) The following documents and their scanned copies must be kept ready before filling the application: (i) 10th class or equivalent certificate for age proof. (ii) EQR certificates e.g. Graduation, Diploma etc. (as applicable). (iii) Photograph (Use only recent colour photograph taken within last 30 days. Keep 7 copies of the same photograph for future use.) (iv) Clear Left thumb impression taken with stamp pad on plain white paper. (v) Signature on plain white paper. (vi) Caste certificate in Central Govt. format (wherever applicable). (vii) PWD certificate (wherever applicable). (viii) Identity proof (ID) (e.g. Aadhaar, Passport, Voter ID, PAN, Official ID, etc.) which must be carried during the examination & document verification. F) Candidates must fill their name, date of birth, father’s name & mother’s name as given in matriculation/secondary examination certificate, otherwise their candidature may be cancelled. G) Candidates should have their own mobile number and valid & active personal email id. H) Contact details such as e-mail, mobile number, communication & permanent address etc. must be correct & active during the recruitment cycle as all communication will be done through them. I) Submission of Application: (i) Candidates should read the instructions carefully before making any entry or selecting options. The detailed instructions for filling-up of online application are available on our website. (ii) Candidates should save and review his/her application before submission. (iii) Candidates are required to make online payment of application fee (wherever applicable). (iv) After final submission, request for change/correction in the particulars given in the application form, shall not be entertained under any circumstances. CEPTAM will not be responsible for any consequences arising out of non-acceptance of any correction/deletion in any particular given by candidates in application form. Hence candidates are advised to fill the application form carefully. J) Candidates are advised to take a printout of application and keep safely, bring it, at the time of document verification (if shortlisted). No printed copy of application is required to be sent to CEPTAM. However, candidates have to produce duly signed printed copy of application at the time of document verification, if provisionally shortlisted.

- 3.2 APPLICATION FEE, EXEMPTION FROM PAYMENT OF FEE AND MODE OF PAYMENT: A) APPLICATION FEE: Non-refundable application fee of Rs. 100/- (Rupees one hundred only) is to be paid by the candidate. The fee should be paid separately for each post code applied.
- B) EXEMPTION FROM PAYMENT OF FEE: All women and SC/ST/PWD/ESM candidates are exempted from payment of application fee, as per Govt. of India rules.
- C) MODE OF PAYMENT: Fee is to be paid online through credit card/debit card/net banking. Fee once paid will not be refunded under any circumstances.
- D) Ex-servicemen, who have already secured employment in civil side under Central Government on regular basis after availing of the benefits of reservation given to ex-servicemen for their reemployment, are NOT eligible for fee concession.

3.3 A) EXAMINATION CITIES FOR TIER-I: Candidates are advised to choose any three different cities from the following list in order of preference for Tier-I examination. The option/preference once given by the candidate will be treated as final and irreversible. No request for change of examination city will be entertained. CEPTAM reserves the right to add/delete any examination city and allot the candidates to any examination city other than chosen by candidate depending upon the operational constraints. 01 AGRA 17 IMPHAL 33 MYSORE 02 AHMEDABAD 18 INDORE 34 NAGPUR 03 BALASORE 19 ITANAGAR 35 NASIK 04 BENGALURU 20 JABALPUR 36 PANAJI 05 BHOPAL 21 JAIPUR 37 PATNA 06 BHUBANESWAR 22 JALANDHAR 38 PORT BLAIR 07 BIKANER 23 JAMSHEDPUR 39 PUNE 08 CHANDIGARH 24 JAMMU 40 RAIPUR 09 CHENNAI 25 JODHPUR 41 RAJKOT 10 DEHRADUN 26 KANPUR 42 RANCHI 11 DELHI NCR 27 KOCHI 43 SILIGURI 12 GORAKHPUR 28 KOLKATA 44 THIRUVANANTHAPURAM 13 GUWAHATI 29 LUCKNOW 45 VARANASI 14 GWALIOR 30 MADURAI 46 VIJAYWADA 15 HAMIRPUR 31 MANGALORE 47 VISAKHAPATNAM 16 HYDERABAD 32 MUMBAI B) EXAMINATION CITIES FOR TIER-II: No choice for city is required to be given by the candidates for Tier-II examination. Examination cities for the same will be decided by CEPTAM based on the operational requirement.

3.4 REJECTION CRITERIA: The rejection of applications will be based on following grounds:

- A) Not meeting EQR.
- B) Incomplete or partially filled Application.
- C) Applications without Fees (wherever applicable).
- D) Applications not received through proper mode/channel.
- E) Applications having blurred/irrelevant photo, signature, thumb impression or other documents.
- F) Underage or overage as on crucial date of eligibility.
- G) Higher qualification viz. M.Sc. or B.Tech. or B.E. or Ph.D. degree etc. as on crucial date of eligibility. .
- H) If a candidate submits more than one application successfully for same post code, then only the latest application with application fee (if applicable) will be considered and other applications will be rejected.

Welcome to www.job-updates.com

**First of all welcome to www.job-updates.com and we are providing all job updates, jobs information, shortcuts or tricks on Aptitude(Number series, simplification, time and work, time and distance, time and speed), reasoning, General Knowledge, as well as current affairs.**

**Profit and Loss**

### Basic Definitions and Formulas

## Profit and Loss: Solved Examples

- Cost price (C.P.): Buying price.
- Selling price (S.P.): sales Price.
- Profit/Gain: If the selling price is more than the cost price, the difference between them is the profit occurred.

Formula: Profit/ Gain = S.P. – C.P.

- Loss: If the selling price is less than the cost price, the difference between them is the loss occurred.

Formula: Loss = Cost price (C.P.) – Selling Price (S.P.)

- Profit or Loss is always calculated on the cost price.
- Marked price: This is the price marked as the selling price on an article, also known as the listed price.
- Discount or Rebate: This is the reduction in price offered on the marked or listed price.

Below is the list of some basic formulas used in solving questions on profit and loss:

- Gain % = (Gain / CP) * 100
- Loss % = (Loss / CP) * 100
- SP = [(100 + Gain%) / 100] * CP
- SP = [(100 – Loss %) / 100]*CP

The above two formulas can be stated as,

If an article is sold at a gain of 10%, then SP = 110% of CP.

If an article is sold at a loss of 10%, then SP = 90% of CP.

- CP = [100 / (100 + Gain%)] * SP
- CP = [100 / (100 – Loss%)] * SP

Question 1: An article is purchased for Rs. 450 and sold for Rs. 500. Find the gain percent.

Solution:

Gain = SP – CP = 500 – 450 = 50.

Gain% = (50/450)*100 = 100/9 %

Question 2: A man sold a fan for Rs. 465. Find the cost price if he incurred a loss of 7%.

Solution:

CP = [100 / (100 – Loss %)] * SP

Therefore, the cost price of the fan = (100/93)*465 = Rs. 500

Question 3: In a transaction, the profit percentage is 80% of the cost. If the cost further increases by 20% but the selling price remains the same, how much is the decrease in profit percentage?

Solution:

Let us assume CP = Rs. 100.

Then Profit = Rs. 80 and selling price = Rs. 180.

The cost increases by 20% → New CP = Rs. 120, SP = Rs. 180.

Profit % = 60/120 * 100 = 50%.

Therefore, Profit decreases by 30%.

Question 4: A man bought some toys at the rate of 10 for Rs. 40 and sold them at 8 for Rs. 35. Find his gain or loss percent.

Solution:

Cost price of 10 toys = Rs. 40 → CP of 1 toy = Rs. 4.

Selling price of 8 toys = Rs. 35 → SP of 1 toy = Rs. 35/8

Therefore, Gain = 35/8 – 4 = 3/8.

Gain percent = (3/8)/4 * 100 = 9.375%

Question 5: The cost price of 10 pens is the same as the selling price of n pens. If there is a loss of 40%, approximately what is the value of n?

Solution:

Let the price of each pen be Re. 1.

Then the cost price of n pens is Rs. n and

the selling price of n pens is Rs. 10.

Loss = n-10.

Loss of 40% → (loss/CP)*100 = 40

Therefore, [(n-10)/n]*100 = 40 → n = 17 (approx)

Welcome to www.job-updates.com

**First of all welcome to www.job-updates.com and we are providing all job updates, jobs information, shortcuts or tricks on Aptitude(Number series, simplification, time and work, time and distance, time and speed), reasoning, General Knowledge, as well as current affairs.**
**Simplification**

**Step 1:** Parts of the expression enclosed in ‘Brackets’ must be solved first. Inside the brackets, once again BODMAS rules apply!
**Step 2:** The mathematical operators ‘of’ and ‘order’ must be solved next. ‘Of’ means part of and is solved by substituting with a multiplication sign. ‘Order’ is the same as exponent. Powers are solved after brackets. Powers also include roots.
**Step 3:** Next, the parts of the equation that contain ‘Division’ and ‘Multiplication’ are calculated.
**Step 4:** Last but not least, the parts of the equation that contain ‘Addition’ and ‘Subtraction’ should be calculated.
## **EXAMPLE:**

**Ans: (4)**
**Solution:**

Now, Try It Yourself:
### Solution

Here is an example, to help you understand the BODMAS rule concept.

What will come in place of question mark (?) in the following question?

240 ÷ 8 × 512 ÷ 4 + ½ of {1800 ÷ (11 × 24 ÷ 8 × 3 – 69)^{2}} = ?

(1) 4111

(2) 3441

(3) 4441

(4) 3841

Given expression is,

240 ÷ 8 × 512 ÷ 4 + ½ of {1800 ÷ (11 × 24 ÷ 8 × 3 – 69)^{2}} = ?

According to the BODMAS, first we need to solve the Brackets.

Here in this equation first we will solve curly bracket and inside the bracket, we will again follow BODMAS Rule. In the curly bracket once again another bracket appears. So we solve that bracket first. Within these smaller brackets, there is no ‘of’ or ‘order’, so we proceed with the following steps in BODMAS.

We see multiplication, division and subtraction signs. Since multiplication and division are of the same rank, we go left to right to solve this. First we multiply, then we divide. Then we perform the second multiplication. After that, we proceed to the subtraction.

Here are the steps to illuminate this process.

⇒ 240 ÷ 8 × 512 ÷ 4 + ½ of {1800 ÷ (264 ÷ 8 × 3 – 69)^{2}} = ?

⇒ 240 ÷ 8 × 512 ÷ 4 + ½ of {1800 ÷ (33 × 3 – 69)^{2}} = ?

⇒ 240 ÷ 8 × 512 ÷ 4 + ½ of {1800 ÷ (99 – 69)^{2}} = ?

⇒ 240 ÷ 8 × 512 ÷ 4 + ½ of {1800 ÷ 30^{2}} = ?

Now we have reached the end of the small brackets. We encounter our first exponent. So we need to solve this ahead of division.

Now solving curly bracket,

⇒ 240 ÷ 8 × 512 ÷ 4 + ½ of {1800 ÷ 900} = ?

⇒ 240 ÷ 8 × 512 ÷ 4 + ½ of 2 = ?

So far we have cleared all the brackets. Now we move to the next step. We come across our first ‘of’. Here, we simply treat ‘of’ as product i.e. multiplication. But note that, ‘of’ will be solved before a regular multiplication.

⇒ 240 ÷ 8 × 512 ÷ 4 + ½ × 2 = ?

⇒ 240 ÷ 8 × 512 ÷ 4 + 1 = ?

Now, we have cleared our expression of all brackets, exponents and ‘of’s. We now move to the 3^{rd} step. Here we perform all the divisions and multiplications. Note that these two operations are the same rank. So we perform either in the order we come across them in, from left to right.

⇒ 30 × 512 ÷ 4 + 1 = ?

⇒ 15360 ÷ 4 + 1 = ?

⇒ 3840 + 1 = ?

Now we have cleared the expression of all multiplication and division operations as well. All we are left with is addition and subtraction.

⇒ ? = 3841

Hence, the required answer is 3841.

Now, Try It Yourself:

Que. 1

What will come in place of question mark (?) in the following question?

24 + 13 – 5 × ½ of 10 – {45 ÷ (17 – 2)} =?

1.

11

2.

-7

3.

9

4.

18

Answer:

Follow BODMAS rule to solve this question:

Given expression is,

24 + 13 – 5 × ½ of 10 – {45 ÷ (17 – 2)} =?

⇒ ? = 24 + 13 – 5 × ½ of 10 – {45 ÷ (15)}

⇒ ? = 24 + 13 – 5 × ½ of 10 – {3}

⇒ ? = 24 + 13 – 5 × (½ × 10) – 3 (of means ‘×’)

⇒ ? = 24 + 13 – 5 × 5 – 3

⇒ ? = 24 + 13 – 25 – 3

⇒ ? = 9

Hence, the required answer is 9.