GRE Practice Question and Answer
8Q: One year ago the ratio between Maneela’s and Shanthi’s salary was 3 : 4. The ratios of their individual salaries between last year’s and this year’s salaries are 4 : 5 and 2 : 3 respectively. At present the total of their salary is Rs. 4160. The salary of Maneela, now is? 5699 05b5cc678e4d2b4197774c165
5b5cc678e4d2b4197774c165- 1Rs. 1600true
- 2Rs. 1700false
- 3Rs. 1800false
- 4Rs. 1900false
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Answer : 1. "Rs. 1600"
Explanation :
Answer: A) Rs. 1600 Explanation: Let the salaries of Maneela and Shanthi one year before be M1, S1 & now be M2, S2 respectively. Then, from the given data, M1/S1 = 3/4 .....(1) M1/M2 = 4/5 .....(2) S1/S2 = 2/3 .....(3) and M2 + S2 = 4160 .....(4) Solving all these eqtns, we get M2 = Rs. 1600.
Q: Find the wrong number from the following series ?37 47 52 67 87 112 142 5679 05b5cc736e4d2b4197774f837
5b5cc736e4d2b4197774f837- 187false
- 247true
- 352false
- 467false
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Answer : 2. "47"
Explanation :
Answer: B) 47 Explanation: The given series follows the rule,+(5x1), +(5x2), +(5x3), +(5x4), +(5x5),.... So starting from 37, 37 + 5 = 42, 42 + 10 = 52, 52 + 15 = 67, 67 + 20 = 87,...So wrong number is 47 which is to be 42.
Q: Statement: Huge amount of resources are required to develop tourist places in a country like India, which is endowed with vast coastlines, rivers, forests, temples etc. Courses of action:a. More tourist resorts along the coastlines only should be started.b. The tourist potential of India should be exploited. 5649 05b5cc76ae4d2b4197774fe75
5b5cc76ae4d2b4197774fe75- 1Only b followstrue
- 2Only a followsfalse
- 3Both a & b followsfalse
- 4Neither a nor b followsfalse
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Answer : 1. "Only b follows"
Explanation :
Answer: A) Only b follows Explanation: As in the given statement, India is already endowed with tourist spots. Therefore, the existing potential should be exploited.
Q: If A + B = 2C and C + D = 2A, then 5621 05b5cc7b9e4d2b4197775096e
5b5cc7b9e4d2b4197775096e- 1A + C = B + Dtrue
- 2A + C = 2Dfalse
- 3A + D = B + Cfalse
- 4A + C = 2Bfalse
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Answer : 1. "A + C = B + D"
Explanation :
Answer: A) A + C = B + D Explanation: Given, A + B = 2C ----(i) C + D = 2A----(ii) Adding (i) and (ii) we get : A + B + C + D = 2C + 2A => B + D = A + C
Q: Find the missing term in the following series ? 10000, 11000, 9900, 10890, ?, 10781 5598 05b5cc758e4d2b4197774fbdf
5b5cc758e4d2b4197774fbdf- 110423false
- 29801true
- 310241false
- 49712false
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Answer : 2. "9801"
Explanation :
Answer: B) 9801 Explanation: Clearly, alternatively we add and subtract 10% of a term to obtain the next term of the series.Thus, 10000 + (10% of 10000)= 11000; 11000 - (10% of 11000) = 9900; 9900 + (10% of 9900) = 10890; 10890 - (10% of 10890) = 9801. 9801 + (10% of 9801) = 9801+980 = 10781.So, missing term = 10890- (10% of 10890)= 9801.
Q: A person is asked to put in a basket one apple when ordered 'one', one guava when ordered 'two', one orange whe ordered 'three' and is asked to take out from the basket one apple and one guava both when ordered 'four'. The ordered sequence executed by the person is as follows : 1 2 3 3 2 1 4 2 3 1 4 2 2 3 3 1 4 1 1 3 2 3 4 1. How many apples will be there in the basket at the end of the above order sequence ? (a) 4 (b) 3 (c) 2 (d) 1 2. How many fruits will be there in the basket at the end of the above order sequence ? (a) 13 (b) 17 (c) 9 (d) 11 5569 05b5cc754e4d2b4197774fbc3
5b5cc754e4d2b4197774fbc3- Show AnswerHide Answer
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Answer :
Explanation :
1. Answer (c) Each time we order 1, one apple is added to the basket but each time when 4 is ordered, one apple is removed from it. Required number of apples = number of 1's - number of 4's = 6 - 4 = 2 2. Answer (d) Each time we order 1, 2 or 3, one fruit is added to the basket but when ever we order 4, two fruits are removed from it. Required number = Number of 1's + Number of 2's + Number of 3's - 2 x (Number of 4's) = 6 + 6 + 7 - (2x4) = 19 - 8 = 11.
Q: Thunder is to Lightning as Grape is to 5567 05b5cc6b8e4d2b4197774d67f
5b5cc6b8e4d2b4197774d67f- 1Winefalse
- 2Soilfalse
- 3Seedtrue
- 4Waterfalse
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Answer : 3. "Seed"
Explanation :
Answer: C) Seed Explanation: Lightning produces thunder just as a seed will eventually produce a grape.
Q: A group of 10 representatives is to be selected out of 12 seniors and 10 juniors. In how many different ways can the group be selected if it should have at least one senior ? 5447 05b5cc6eee4d2b4197774eed7
5b5cc6eee4d2b4197774eed7- 1²²C₁₀ + 1false
- 2²²C₉ + ¹⁰C₁false
- 3²²C₁₀false
- 4²²C₁₀ - 1true
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Answer : 4. "²²C₁₀ - 1"
Explanation :
Answer: D) ²²C₁₀ - 1 Explanation: The total number of ways of forming the group of ten representatives is ²²C₁₀. The total number of ways of forming the group that consists of no seniors is ¹⁰C₁₀ = 1 way The required number of ways = ²²C₁₀ - 1