Maths Practice Question and Answer

Q:

If the highest common factor (HCF) of x and y is 15, then the HCF of 36x2 – 81y2 and 81x2 – 9y2 is divisible by __________

5452 0

  • 1
    135
    Correct
    Wrong
  • 2
    120
    Correct
    Wrong
  • 3
    180
    Correct
    Wrong
  • 4
    90
    Correct
    Wrong
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Answer : 1. "135"

Q:

If A: B = 2: 3, B: C = 6: 11 then what is the value of C: B: A?

5386 0

  • 1
    11: 6: 2
    Correct
    Wrong
  • 2
    22: 6: 4
    Correct
    Wrong
  • 3
    11: 3: 2
    Correct
    Wrong
  • 4
    11: 6: 4
    Correct
    Wrong
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Answer : 4. "11: 6: 4"

Q: Every year before the festive season,a shopkeeper increases the price of the product by 35% and then introduce two successive discount of 10% and 15% respectively.what is percentage loss and percentage gain ? 5378 0

  • 1
    3.27 % loss
    Correct
    Wrong
  • 2
    4.15 % loss
    Correct
    Wrong
  • 3
    3.27 % gain
    Correct
    Wrong
  • 4
    4.15 % gain
    Correct
    Wrong
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Answer : 3. "3.27 % gain"
Explanation :

Answer: C) 3.27 % gain Explanation: Let cp= 100,35 % increase in sp=13510 % discount in 135((135*10)/100)=13.5so 1st sp=(135-13.5)=121.5, again 15 % discount in 1st sp((121.5*15)/100)=18.2252nd sp=(121.5-18.225)=103.275, so finally cp=100,sp=103.275 ,gain by 3.27%

Q: If 2A=3B=4C, then A:B:C will be- 5364 1

  • 1
    2:3:4
    Correct
    Wrong
  • 2
    4:3:2
    Correct
    Wrong
  • 3
    6:4:3
    Correct
    Wrong
  • 4
    3:4:6
    Correct
    Wrong
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Answer : 3. "6:4:3"

Q:

The average age of P, Q, R, and S is 30 years. How old is R?
I. The sum of ages of P and R is 60 years.
II. S is 10 years younger than R.

5302 0

  • 1
    I alone sufficient while II alone not sufficient to answer
    Correct
    Wrong
  • 2
    II alone sufficient while I alone not sufficient to answer
    Correct
    Wrong
  • 3
    Either I or II alone sufficient to answer
    Correct
    Wrong
  • 4
    Both I and II are not sufficient to answer
    Correct
    Wrong
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Answer : 4. "Both I and II are not sufficient to answer"

Q: A shopkeeper sells a TV set on discount of 8% of printed price and gains 25%. If print price was Rs 20000 then, what was the cost price? 5295 0

  • 1
    Rs 13800
    Correct
    Wrong
  • 2
    Rs 14720
    Correct
    Wrong
  • 3
    Rs 14800
    Correct
    Wrong
  • 4
    Rs 13720
    Correct
    Wrong
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Answer : 2. "Rs 14720"

Q: 30 Men contracts to complete a work in 50 days. But after 25 days, it is come to know that only 1/3rd of the work has been done. How many more workers are required to complete the work in time? 5293 2

  • 1
    25
    Correct
    Wrong
  • 2
    30
    Correct
    Wrong
  • 3
    35
    Correct
    Wrong
  • 4
    40
    Correct
    Wrong
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Answer : 2. "30"

Q:

A clock rings 12 times in 22 seconds. Tell how much time will it take to ring 8 times?

5284 0

  • 1
    30 Second
    Correct
    Wrong
  • 2
    22 Second
    Correct
    Wrong
  • 3
    20 Second
    Correct
    Wrong
  • 4
    14 Second
    Correct
    Wrong
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Answer : 4. "14 Second"

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