Quantitative Aptitude Practice Question and Answer
8Q: A student can divide her books into groups of 5, 9 and 13. what is the smallest possible number of the books ? 2563 05b5cc74ae4d2b4197774fab3
5b5cc74ae4d2b4197774fab3- 1487false
- 2585true
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Answer : 2. "585"
Explanation :
Answer: B) 585 Explanation: The smallest possible number of books = L.C.M of 5, 9 and 13.Therefore, L.C.M of 5,9 and 13 is = 5 x 9 x 13 = 585.
Q: On selling 36 oranges one incurs a loss equal to selling Price of 4 oranges. What will be the loss%? 2563 05d133058925caa2d5bbbff6b
5d133058925caa2d5bbbff6b- 110%true
- 234%false
- 313%false
- 414%false
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Answer : 1. "10%"
Q: A number increased by 30% gives 390. The number is 2559 05b5cc6dde4d2b4197774ea1e
5b5cc6dde4d2b4197774ea1e- 1180false
- 2300true
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Answer : 2. "300"
Explanation :
Answer: B) 300 Explanation: Let the number be 'N'Given N + 30N/100 = 390=> 130N/100 = 390=> N = 390 x 10/13=> N = 300.
Q: Sushma joins a job at 20 yrs. First 3 years salary is 10,000 p.a. Afterwards every year increment of 2,000 per year for 10 years. Then salary becomes constant till retirement. At retirement average salary is 25,000. (throughout career). At what age Sushma retires ? 2558 05b5cc711e4d2b4197774f3be
5b5cc711e4d2b4197774f3be- 150 yrstrue
- 247 yrsfalse
- 345 yrsfalse
- 442 yrsfalse
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Answer : 1. "50 yrs"
Explanation :
Answer: A) 50 yrs Explanation: Let age of retirement = Sso according to the given condition 25000(x-20)=10000 x 3 + 12000 + 14000 + 16000 + 18000 + 20000 + 22000 + 24000 + 26000 + 28000 + 30000 + 30000(S-33)= 30000 + 210000 + 30000S-990000= 30000S - 750000or 25000S - 500000 = 30000x - 750000or 5000x = 250000or S = 50 yrs.
Q: Find the least number with which 16200 should be multiplied, to make it a perfect cube ? 2556 05b5cc6eee4d2b4197774eec3
5b5cc6eee4d2b4197774eec3- 145true
- 248false
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Answer : 1. "45"
Explanation :
Answer: A) 45 Explanation: 16200 = 23×34×52 A perfect cube has a property of having the indices of all its prime factors divisible by 3. Required number = 32×5 = 9x5 = 45.
Q: P, Q, R, S, T and U are six consecutive odd numbers and their average is 52. What is the product of P and U ? 2555 05b5cc6b9e4d2b4197774d711
5b5cc6b9e4d2b4197774d711- 12212false
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Answer : 4. "2679"
Explanation :
Answer: D) 2679 Explanation: Let x, x+2, x+4, x+6, x+8 and x+10 are six consecutive odd numbers. Given that their average is 52 Then, x + x+2 + x+4 + x+6 + x+8 + x+10 = 52×6 6x + 30 = 312 x = 47 So Product = 47 × 57 = 2679
Q: What time will it be 18 hours from now in India, if in the USA it is 4:15 AM? (Hint : IST = US + 9:30 hrs) 2554 05b5cc699e4d2b4197774c6dc
5b5cc699e4d2b4197774c6dc- 11:45 in the afternoonfalse
- 27:45 in the eveningfalse
- 37:45 in the next morningtrue
- 41:45 in the next morningfalse
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Answer : 3. "7:45 in the next morning"
Explanation :
Answer: C) 7:45 in the next morning Explanation: We know that the time difference between India and USA is 9 hrs 30 min. India is 9:30 hrs ahead of USA. Time in India = 4:15 + 9:30 = 13:45 PM. Required Time after 18 hrs = 13:45 + 18 hrs = 7:45 AM. Hence it is 7:45 AM on the next morning.
Q: Find the missing number in the given number series? 514, 470, ?, 415, 404 2552 05b5cc6a9e4d2b4197774cf19
5b5cc6a9e4d2b4197774cf19- 1441false
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Answer : 2. "437"
Explanation :
Answer: B) 437 Explanation: Given number series is 514 470 ? 415 404 Here the pattern it follows is 514 514 - 44 = 470 470 - 33 = 437 437 - 22 = 415 415 - 11 = 404 Hence, the missing number in the given number series is 437.