Maths Practice Question and Answer

Q:

A is 40% less than B, and C is 40% of the sum of A and B. The difference between A and B is what percentage of C?

1714 0

  • 1
    64 %
    Correct
    Wrong
  • 2
    62.5 %
    Correct
    Wrong
  • 3
    60.5 %
    Correct
    Wrong
  • 4
    60%
    Correct
    Wrong
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Answer : 2. "62.5 %"
Explanation :

The Ratio will be A: B :C=60 : 100 : 64

Then 40/64*100=62.5%

Q:

If the angles of a triangle are in the ratio of 2:3:7, then find the ratio of the greatest angle to the smallest angle.

1713 0

  • 1
    7:2
    Correct
    Wrong
  • 2
    2:3
    Correct
    Wrong
  • 3
    7:1
    Correct
    Wrong
  • 4
    3:5
    Correct
    Wrong
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Answer : 1. "7:2 "

Q:

The average of marks scored by the students of a class is 68. The average of marks of the girls in the class is 80 and that of the boys is 60. What is the percentage of boys in the class? 

1712 0

  • 1
    65%
    Correct
    Wrong
  • 2
    70%
    Correct
    Wrong
  • 3
    40%
    Correct
    Wrong
  • 4
    60%
    Correct
    Wrong
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Answer : 4. "60% "

Q:

What is the measure of the angle formed by the hour and minute hand when the time to 10' O clock? 

1712 0

  • 1
    30°
    Correct
    Wrong
  • 2
    45°
    Correct
    Wrong
  • 3
    60°
    Correct
    Wrong
  • 4
    90°
    Correct
    Wrong
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Answer : 3. "60°"

Q:

A store sells a watch for a profit of 25% of the cost. Then the percentage of profit against selling price is-

1712 0

  • 1
    22%
    Correct
    Wrong
  • 2
    20%
    Correct
    Wrong
  • 3
    18%
    Correct
    Wrong
  • 4
    15%
    Correct
    Wrong
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Answer : 2. "20%"
Explanation :

Q:

$$ {4\over 5}×[{1\over 2}\ of\ 25]+12÷{3\over 4}-32=?$$

1712 0

  • 1
    8
    Correct
    Wrong
  • 2
    –2
    Correct
    Wrong
  • 3
    –6
    Correct
    Wrong
  • 4
    12
    Correct
    Wrong
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Answer : 3. "–6"

Q:

The largest and the smallest angles of a triangle are in the ratio of 3:1 respectively. The second largest angle of the triangle is equal to 56°. What is the value of largest angle of the triangle?

1711 0

  • 1
    49
    Correct
    Wrong
  • 2
    129
    Correct
    Wrong
  • 3
    123
    Correct
    Wrong
  • 4
    93
    Correct
    Wrong
  • 5
    None of these
    Correct
    Wrong
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Answer : 4. "93"

Q: Ratio between the time taken by A and B to complete a certain work is 4:5. If together they can complete a work in 20 days, in how many days can A alone complete it? 1711 0

  • 1
    30
    Correct
    Wrong
  • 2
    32
    Correct
    Wrong
  • 3
    36
    Correct
    Wrong
  • 4
    45
    Correct
    Wrong
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Answer : 3. "36"

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