Practice Question and Answer

Q:

A man is twice as fast as women and woman is twice fast as a boy. If all of them i.e., a man, a woman and a boy can finish a work together in 4 days, in how many days will a boy do it alone?

1634 0

  • 1
    14 days
    Correct
    Wrong
  • 2
    36 days
    Correct
    Wrong
  • 3
    28 days
    Correct
    Wrong
  • 4
    18 days
    Correct
    Wrong
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Answer : 3. "28 days"

Q:

There are 1600 students in a college, whose average weight is 50 kg. If average weight of boys is 54 kg. and average weight of girls is 38 kg. Then find the number of girls in the school.

1617 0

  • 1
    300
    Correct
    Wrong
  • 2
    200
    Correct
    Wrong
  • 3
    800
    Correct
    Wrong
  • 4
    400
    Correct
    Wrong
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Answer : 4. "400"

Q:

The ratio of milk and water in 42 litres of milk and water is 4 : 3. If x litres less of both quantities liquids be mixed up then their ratio becomes 7 : 5. Find the value of x.

1697 0

  • 1
    4.00 litre
    Correct
    Wrong
  • 2
    3.00 litre
    Correct
    Wrong
  • 3
    3.26 litre
    Correct
    Wrong
  • 4
    1.45 litre
    Correct
    Wrong
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Answer : 2. "3.00 litre"

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