Quantitative Aptitude Practice Question and Answer

Q: A man standing on a platform is crossed by a train in 20 seconds while 135-metre-long platform is crossed in 29 seconds. Find the speed of train. 3262 3

  • 1
    15 metre/sec
    Correct
    Wrong
  • 2
    60 metre/sec
    Correct
    Wrong
  • 3
    20 metre/sec
    Correct
    Wrong
  • 4
    18 metre/sec
    Correct
    Wrong
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Answer : 1. "15 metre/sec"

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Answer : 4. "31"
Explanation :

Answer: D) 31 Explanation: Let y be the total number of loavesa be the remaining loaves after 1st thiefb be the remaining loaves after 2nd thiefand c, d..so on after 3 and 4 the = 0 be the remaining loaves after 5th thief a = y - (y/2 + 1/2)= y/2 - 1/2 b = a - (a/2 + 1/2)= a/2 - 1/2 c = b - (b/2 + 1/2)= b/2 - 1/2 d = c - (c/2 + 1/2)= c/2 - 1/2 e = d - (d/2 + 1/2)= d/2 - 1/2we know that, e = 0,thus by substitution, we getd = 1c = 3b = 7a = 15y = 31Therefore total number of bread loaves in bakery was 31.

Q: Find the next number in the sequence? 28, 16, 28, 76, 274 3247 0

  • 1
    1233
    Correct
    Wrong
  • 2
    1243
    Correct
    Wrong
  • 3
    1256
    Correct
    Wrong
  • 4
    1276
    Correct
    Wrong
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Answer : 2. "1243"
Explanation :

Answer: B) 1243 Explanation: Given number sequence is 28, 16, 28, 76, 274 Here the sequence follows a pattern that 28 28 x 0.5 + 2 = 14 + 2 = 16 16 x 1.5 + 4 = 24 + 4 = 28 28 x 2.5 + 6 = 70 + 6 = 76 76 x 3.5 + 8 = 266 + 8 = 274 274 x 4.5 + 10 = 1233 + 10 = 1243   Hence, the next number in the given number sequence is 1243.

Q: An accurate clock shows 7 o'clock in the morning. Through how may degrees will the hour hand rotate when the clock shows 3 o'clock in the afternoon? 3219 0

  • 1
    144º
    Correct
    Wrong
  • 2
    168º
    Correct
    Wrong
  • 3
    180º
    Correct
    Wrong
  • 4
    150º
    Correct
    Wrong
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Answer : 3. "180º"
Explanation :

Answer: C) 180º Explanation: Angle traced by the hour hand in 6 hours =360o12×6 = 180o.

Q: If HCF of two numbers is 8,which of the following can never be their LCM? 3219 0

  • 1
    32
    Correct
    Wrong
  • 2
    48
    Correct
    Wrong
  • 3
    60
    Correct
    Wrong
  • 4
    152
    Correct
    Wrong
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Answer : 3. "60"
Explanation :

Answer: C) 60 Explanation: 60 is not a multiple of 8

Q:

What approximate value should come in place of the question mark(?) in the following question.
635×455÷403=?

3204 0

  • 1
    735
    Correct
    Wrong
  • 2
    795
    Correct
    Wrong
  • 3
    695
    Correct
    Wrong
  • 4
    685
    Correct
    Wrong
  • 5
    715
    Correct
    Wrong
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Answer : 5. "715"

Q: A batsman in his 17th innings makes a score of 85 and their by increasing his average by 3. What is his average after the 17th innings ? 3197 0

  • 1
    34
    Correct
    Wrong
  • 2
    36
    Correct
    Wrong
  • 3
    35
    Correct
    Wrong
  • 4
    37
    Correct
    Wrong
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Answer : 4. "37"
Explanation :

Answer: D) 37 Explanation: 16x + 85 = 17(x + 3) x = 34 + 3 = 37

Q: A man spend Rs. 810 in buying trouser at Rs. 70 each and shirt at Rs. 30 each. What will be the ratio of trouser and shirt when the maximum number of trouser is purchased ? 3187 0

  • 1
    1:3
    Correct
    Wrong
  • 2
    2:1
    Correct
    Wrong
  • 3
    3:2
    Correct
    Wrong
  • 4
    2:3
    Correct
    Wrong
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Answer : 3. "3:2"
Explanation :

Answer: C) 3:2 Explanation: Let us assume S as number of shirts and T as number of trousersGiven that each trouser cost = Rs.70 and that of shirt = Rs.30Therefore, 70 T + 30 S = 810=> 7T + 3S = 81......(1)T = ( 81 - 3S )/7 We need to find the least value of S which will make (81 - 3S) divisible by 7 to get maximum value of TSimplifying by taking 3 as common factor i.e, 3(27-S) / 7In the above equation least value of S as 6 so that 27- 3S becomes divisible by 7 Hence T = (81-3xS)/7 = (81-3x6)/7 = 63/7 = 9 Hence for S, put T in eq(1), we getS = 81-7(9)/3 = 81-63 / 3 = 18/3 = 6.The ratio of T:S = 9:6 = 3:2.

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