Maths Practice Question and Answer

Q:

A and B can do a piece of work in 20 days and 30 days respectively. They started the work together but after 8 days they doing work in alternate days, started with B. how many days the work will be completed? 

2414 0

  • 1
    20
    Correct
    Wrong
  • 2
    12
    Correct
    Wrong
  • 3
    14
    Correct
    Wrong
  • 4
    16
    Correct
    Wrong
  • 5
    8
    Correct
    Wrong
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Answer : 4. "16 "

Q:

If the radius and height of a cylinder increase by 20% and15% respectively. Then what is the % change in curved surface area? 

1592 0

  • 1
    38%
    Correct
    Wrong
  • 2
    42%
    Correct
    Wrong
  • 3
    35%
    Correct
    Wrong
  • 4
    32%
    Correct
    Wrong
  • 5
    Cannot be determined
    Correct
    Wrong
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Answer : 1. "38% "

Q:

In a school, number of girls is 75% of number of boys. Difference between boys and girls is 30. On a particular day 20% girls were absent, then find the number of girls those who present? 

1399 0

  • 1
    18
    Correct
    Wrong
  • 2
    90
    Correct
    Wrong
  • 3
    42
    Correct
    Wrong
  • 4
    168
    Correct
    Wrong
  • 5
    72
    Correct
    Wrong
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Answer : 5. "72 "

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