Quantitative Aptitude Practice Question and Answer
8Q: Simplify the fraction? 5 (2/7) - 3 (1/14) - 2 (1/14) - 1 (1/7) = ? + 3 (1/17) 1930 05b5cc6a5e4d2b4197774ccef
5b5cc6a5e4d2b4197774ccef- 1-4 (1/17)true
- 25 (2/17)false
- 3-2 (1/17)false
- 43 (3/17)false
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Answer : 1. "-4 (1/17)"
Explanation :
Answer: A) -4 (1/17) Explanation: Given fraction is┬а5 (2/7) - 3 (1/14) - 2 (1/14) - 1 (1/7) =┬а?┬а+ 3 (1/17)┬а It can be written as┬а (5 - 3 - 2 - 1) + (2/7 - 1/14 - 1/14 - 1/7) = ? +┬а┬а3 (1/17)┬а -1 + 0 -┬а3 (1/17) = ? => ? = -4 (1/17)
Q: What will be added to the unit digits of the number 86236 so that┬аnumber will be divisible by 9 ┬а? 1929 05b5cc6cae4d2b4197774dfcf
5b5cc6cae4d2b4197774dfcf- 11false
- 22true
- 33false
- 40false
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Answer : 2. "2"
Explanation :
Answer: B) 2 Explanation: A number is divisible by 9 only if the sum of the digits of the number is divisible by 9. Here 86236 = 8 + 6 + 2 + 3 + 6 = 25 We must add 2 to 25 to become 27 which is divisible by 9.
Q: K and L start a business jointly. L invests Rs.16000 for 8 months and L remains in the business for 4 months. Out of the total profit B claims 2/7th share. How much money is contributed by B ┬а? 1924 05b5cc6e1e4d2b4197774ebe8
5b5cc6e1e4d2b4197774ebe8- 1Rs. 9040false
- 2Rs. 10,400false
- 3Rs. 12,800true
- 4Rs. 6350false
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Answer : 3. "Rs. 12,800"
Explanation :
Answer: C) Rs. 12,800 Explanation: 16x8 : Px4 = 5:2 P = 12.8 => Rs.12,800
Q: In the following number series only one number is wrong. Find out the wrong number ? 6, 15, 35, 63, 143, 221, 323 1924 05b5cc6c8e4d2b4197774df41
5b5cc6c8e4d2b4197774df41- 1143false
- 263true
- 3323false
- 435false
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Answer : 2. "63"
Explanation :
Answer: B) 63 Explanation: Here the series follows the pattern that, product of succesive prime numbers i.e, ┬а2 ├Ч 3 = 6 ┬а3 ├Ч 5 = 15 ┬а5 ├Ч 7 = 35 ┬а7 ├Ч 11 = 77 ┬а11 ├Ч 13 = 143 ┬а13 ├Ч 17 = 221 ┬а17 ├Ч 19 = 323 So here in place of 77 the number 63 is written. So the wrong number is 63.
Q: An express train takes 4 seconds to enter tunnel which is 1 km long. If it is traveling at 108 km an hour, how long will it take to pass completely through the tunnel ? 1924 05b5cc73ae4d2b4197774f8ec
5b5cc73ae4d2b4197774f8ec- 133 secfalse
- 237.33 sectrue
- 336.43 secfalse
- 432 secfalse
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Answer : 2. "37.33 sec"
Explanation :
Answer: B) 37.33 sec Explanation: Speed = 108 km/hrenter a tunnel,, means that the train covers a distance equal to its own lengthso (108 x 5/18) = x/4 where x= length of trainhence x = 120 mtrsto pass completely train has to travel a distance = (x + tunnel length) that is 1120 mtrs.so (1120/t) = (108x5/18)t = 37.33 sec
Q: Find the next number in the given number series? 0, 3, 8, 15, 24, ? 1922 05b5cc6a7e4d2b4197774ce13
5b5cc6a7e4d2b4197774ce13- 135true
- 237false
- 334false
- 436false
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Answer : 1. "35"
Explanation :
Answer: A) 35 Explanation: Here the given number series is 0, 3, 8, 15, 24, ? The next number in the given series can be found such a way that the number series follows a pattern, 22┬а-┬а4┬а=┬а032┬а-┬а6┬а=┬а342┬а┬а-┬а8┬а=┬а852┬а-┬а10┬а=┬а1562┬а-┬а12┬а=┬а2472┬а-┬а14┬а=┬а35Hence,┬аthe┬аnext┬аnumber┬аin┬аthe┬аiven┬аseries┬аis┬а35.
Q: Twenty times a positive integer is less than its square by 96. What is the integer ? 1920 05b5cc6e7e4d2b4197774ed74
5b5cc6e7e4d2b4197774ed74- 142false
- 236false
- 348false
- 424true
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Answer : 4. "24"
Explanation :
Answer: D) 24 Explanation: Let the integer be x. Then, x2 - 20x = 96 (x + 4)(x - 24) = 0 x = 24
Q: A work which could be finished in 11 days was finished 4 days earlier after 4 more men joined. The number of men employed was ? 1918 05b5cc6e1e4d2b4197774ebb6
5b5cc6e1e4d2b4197774ebb6- 17true
- 28false
- 39false
- 410false
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Answer : 1. "7"
Explanation :
Answer: A) 7 Explanation: As the work is sameM1D1 = M2D2 Here Let the number of men employed was M=> 11M = 7(M+4)=> 11M - 7M = 28=> M = 7

