Quantitative Aptitude Practice Question and Answer

Q: If Reena’s age was twice of her present age, when subtracted from four times three years from hence, with three times the three years before her present age. What will be her age after one year ? 1897 0

  • 1
    22 yrs
    Correct
    Wrong
  • 2
    21 yrs
    Correct
    Wrong
  • 3
    20 yrs
    Correct
    Wrong
  • 4
    24 yrs
    Correct
    Wrong
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Answer : 1. "22 yrs"
Explanation :

Answer: A) 22 yrs Explanation: Let Reena’s present age be 'K' yrs.Given:{(K+3) x 4} - {(K-3) x 3)} => K = 21 yrsSo her present age is 21 yrs.Then, her age after 1 year is 22 yrs.

Q: Find the next number in the following number series? 11, 13, 30, 96, ? 1894 0

  • 1
    264
    Correct
    Wrong
  • 2
    392
    Correct
    Wrong
  • 3
    412
    Correct
    Wrong
  • 4
    459
    Correct
    Wrong
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Answer : 2. "392"
Explanation :

Answer: B) 392 Explanation: The given number series 11, 13, 30, 96, ? follows a pattern that, 11 11 x 1 + 2 = 13 13 x 2 + 4 = 30 30 x 3 + 6 = 96 96 x 4 + 8 = 392   Hence, the next number in the given series is 392.

Q: There are 600 Kabaddi players 4% wear knee band on one leg. Of the remaining, 25% wear knee bands on both legs. How many players don't wear a knee band ? 1890 0

  • 1
    426
    Correct
    Wrong
  • 2
    428
    Correct
    Wrong
  • 3
    415
    Correct
    Wrong
  • 4
    432
    Correct
    Wrong
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Answer : 4. "432"
Explanation :

Answer: D) 432 Explanation: There are 600 Kabaddi players4% wear knee band on one legRemaining players = 600 x 0.96 = 576Of the remaining, 25% wear knee bands on both leg and Of the remaining, 75% do not wear knee bands .So players not wearing knee bands = 0.75 x 576 = 576 x 3/4 = 144 x 3 = 432.

Q: 2.5, 3.5, 9, 40, ? Find the next number in the above-given series? 1890 0

  • 1
    316
    Correct
    Wrong
  • 2
    328
    Correct
    Wrong
  • 3
    323
    Correct
    Wrong
  • 4
    340
    Correct
    Wrong
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Answer : 2. "328"
Explanation :

Answer: B) 328 Explanation: 2.5 × 1 + 1 = 3.5 3.5 × 2 + 2 = 9 9 × 4 + 4 = 40 40 × 8 + 8 = 328

Q: Selling an article at a profit of 20%, Aman gets Rs. 400 more than selling at a loss of 20%. The cost price of the article is ? 1889 0

  • 1
    Rs.1000
    Correct
    Wrong
  • 2
    Rs. 1020
    Correct
    Wrong
  • 3
    Rs.1210
    Correct
    Wrong
  • 4
    Rs.1140
    Correct
    Wrong
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Answer : 1. "Rs.1000"
Explanation :

Answer: A) Rs.1000 Explanation: Cost price of the article is given by = 400x100/(20+20) = Rs.1000

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Answer : 2. "535"
Explanation :

Answer: B) 535 Explanation: The number of points of intersection of 37 lines is C237. But 13 straight lines out of the given 37 straight lines pass through the same point A.   Therefore instead of getting C213 points, we get only one point A. Similarly 11 straight lines out of the given 37 straight lines intersect at point B. Therefore instead of getting C211 points, we get only one point B.    Hence the number of intersection points of the lines is C237-C213-C211 +2 = 535

Q: The least number of four digits which is divisible by 4, 6, 8 and 10 is ? 1887 0

  • 1
    1107
    Correct
    Wrong
  • 2
    1080
    Correct
    Wrong
  • 3
    1100
    Correct
    Wrong
  • 4
    1208
    Correct
    Wrong
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Answer : 2. "1080"
Explanation :

Answer: B) 1080 Explanation: LCM of 4, 6, 8 and 10 = 120120) 1000 (8 960 ------ 40 The least number of four digits which is divisible by 4, 6, 8 and 10 => 1000 + 120 - 40 = 1080.

Q: The average temperature of Monday to Wednesday was 37 C and of Tuesday to Thursday was 34 C. If the temperature on Thursday was 4/5 th of that of Monday, the temperature on Thursday was ? 1885 0

  • 1
    35 c
    Correct
    Wrong
  • 2
    36 c
    Correct
    Wrong
  • 3
    34 c
    Correct
    Wrong
  • 4
    32 c
    Correct
    Wrong
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Answer : 2. "36 c"
Explanation :

Answer: B) 36 c Explanation: Monday + Tuesday + Wednesday = 37 x 3 -----------(1)Tuesday + Wednesday + Thursday = 34 x 3---------(2)Thursday = 4/5 of Monday ------------------(3)subtract eqn (1) from (2) we get,Thursday - Monday = -9 => Monday - Thursday = 9.......(4)From (3) & (4), we get So,Thursday = 36 C

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