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) 1669 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 5 (2/7) - 3 (1/14) - 2 (1/14) - 1 (1/7) = ? + 3 (1/17) It can be written as (5 - 3 - 2 - 1) + (2/7 - 1/14 - 1/14 - 1/7) = ? + 3 (1/17) -1 + 0 - 3 (1/17) = ? => ? = -4 (1/17)
Q: Find the odd man out of the number series? 18, 37, 76, 155, 314, 635 5417 05b5cc6a5e4d2b4197774cce0
5b5cc6a5e4d2b4197774cce0- 137false
- 2155false
- 3314false
- 4635true
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Answer : 4. "635"
Explanation :
Answer: D) 635 Explanation: Given Number series is 18 37 76 155 314 635 follows a pattern that, 18 18 x 2 +1 = 37 37 x 2 +2 = 76 76 x 2 +3 = 155 155 x 2 +4 = 314 314 x 2 +5 = 633 not 635 Hence, the odd man is 635.
Q: Find the Odd one out of the following Numbers? 1754 05b5cc6a4e4d2b4197774cc4b
5b5cc6a4e4d2b4197774cc4b- 13false
- 219false
- 367false
- 4133true
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Answer : 4. "133"
Explanation :
Answer: D) 133 Explanation: Here among the given numbers, 3, 19, 67 are prime numbers. And 133 is not a prime number. Hence, the odd number of the given numbers is 133.
Q: Two persons Shyam and Rahim can do a job in 32 days together. Rahim can do the same job in 48 days alone. They started working together and after working 8 days Rahim is replaced by a third person Ram whose efficiency is half that of Rahim. Find in how many days the remaining work will be completed by both Shyam and Ram together? 2515 05b5cc6a3e4d2b4197774cc20
5b5cc6a3e4d2b4197774cc20- 116 daysfalse
- 272/5 daystrue
- 315 daysfalse
- 496/5 daysfalse
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Answer : 2. "72/5 days"
Explanation :
Answer: B) 72/5 days Explanation: Work done by Shyam and Rahim in 8 days = 8/32 = 1/4 Remaining work to be done by Shyam and Ram = 1 - 1/4 = 3/4 Given efficieny of Ram is half of Rahim i.e, as Rahim can do the work in 48 days, Ram can do the work in 24 days. One day work of Ram and Shyam = (1/32 - 1/48) + 1/24 = 5/96 Hence, the total work can be done by Shyam and Ram together in 96/5 days. Therefore, remaining work 3/4 can be done by them in 3/4 x 96/5 = 72/5 = 14.4 days.
Q: In a box, there are four marbles of white color and five marbles of black color. Two marbles are chosen randomly. What is the probability that both are of the same color? 1548 05b5cc6a3e4d2b4197774cc15
5b5cc6a3e4d2b4197774cc15- 12/9false
- 25/9false
- 34/9true
- 40false
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Answer : 3. "4/9"
Explanation :
Answer: C) 4/9 Explanation: Number of white marbles = 4 Number of Black marbles = 5 Total number of marbles = 9 Number of ways, two marbles picked randomly = 9C2 Now, the required probability of picked marbles are to be of same color = 4C2/9C2 + 5C2/9C2 = 1/6 + 5/18 = 4/9.
Q: A train covers 180 km distance in 5 hours. Another train covers the same distance in 1 hour less. What is the difference in the distances covered by these trains in one hour if they are moving in the same direction? 1850 05b5cc6a3e4d2b4197774cbff
5b5cc6a3e4d2b4197774cbff- 115 kmsfalse
- 29 kmstrue
- 36 kmsfalse
- 418 kmsfalse
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Answer : 2. "9 kms"
Explanation :
Answer: B) 9 kms Explanation: The first train covers 180 kms in 5 hrs => Speed = 180/5 = 36 kmph Now the second train covers the same distance in 1 hour less than the first train => 4 hrs => Speed of the second train = 180/4 = 45 kmph Now, required difference in distance in 1 hour = 45 - 36 = 9 kms.
Q: On retirement, a woman gets Rs. 1,45,440 of her provident fund which she invests in a scheme at 20% per annum. Her monthly income from this scheme will be 1544 05b5cc6a2e4d2b4197774cb9e
5b5cc6a2e4d2b4197774cb9e- 1Rs. 2550false
- 2Rs. 2424true
- 3Rs. 2224false
- 4Rs. 2380false
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Answer : 2. "Rs. 2424"
Explanation :
Answer: B) Rs. 2424 Explanation: Now, the principal amount P = Rs. 1,45,440 Rate of interest R = 20%/annum Now monthly income I = PTR/100 = 1,45,440 x 20 x 1/100 x 12 = 2908800/1200 = Rs. 2424. Hence, her monthly income = Rs. 2424.
Q: Find the missing number in the given number series? 5 11 21 44 ? 175 2112 05b5cc6a2e4d2b4197774cb99
5b5cc6a2e4d2b4197774cb99- 186true
- 278false
- 394false
- 4102false
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Answer : 1. "86"
Explanation :
Answer: A) 86 Explanation: Here the given number series is 5 11 21 44 ? 175 Now the given series follows a pattern, that x2 + 1, x2 - 1, x2 + 2, x2 - 2, x2 + 3, x2 - 3,... Then the missing number is x2 - 2 = 44 x 2 - 2 = 88 - 2 = 86 Hence, the missing number in the number series is 86.