Maths Practice Question and Answer

Q:

The top of two poles of height 24 m and 42 m are connected by a wire. If the wire makes an angle of 60° with the horizontal, then the length of the wire is

1573 0

  • 1
    $$12\sqrt{3}$$
    Correct
    Wrong
  • 2
    $$18\sqrt{3}$$
    Correct
    Wrong
  • 3
    $$16\sqrt{3}$$
    Correct
    Wrong
  • 4
    $$24\sqrt{3}$$
    Correct
    Wrong
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Answer : 1. "$$12\sqrt{3}$$"

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Answer : 4. "VI "

Q:

There is 80% increase in amount in 5 years at simple interest. What will be the compound interest of Rs. 20,000 after 3 years at the same rate?

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  • 1
    Rs.1000
    Correct
    Wrong
  • 2
    Rs.11217.92
    Correct
    Wrong
  • 3
    Rs.11717.20
    Correct
    Wrong
  • 4
    Rs.13217.92
    Correct
    Wrong
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Answer : 2. "Rs.11217.92"

Q:

The selling price of the product was equal to 50% of its cost price. Two gradual discounts were offered on the product. If the first discount was 20%, then what was the second discount?

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  • 1
    30 %
    Correct
    Wrong
  • 2
    37.5 %
    Correct
    Wrong
  • 3
    25 %
    Correct
    Wrong
  • 4
    33.33 %
    Correct
    Wrong
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Answer : 2. "37.5 %"

Q:

Speed of boat in still water is 9 km/hr. Stream speed initially is 2 km/hr but it increases by 3 km/hr after every hour. Find the time after which boat will come back to the position where it started.(in hour)

1572 0

  • 1
    5(5/8)
    Correct
    Wrong
  • 2
    4(7/8)
    Correct
    Wrong
  • 3
    5(3/8)
    Correct
    Wrong
  • 4
    4(3/4)
    Correct
    Wrong
  • 5
    None of these
    Correct
    Wrong
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Answer : 1. "5(5/8)"

Q:

$$ \sqrt{749}×0.56+14.38=?$$

1572 0

  • 1
    30
    Correct
    Wrong
  • 2
    42
    Correct
    Wrong
  • 3
    20
    Correct
    Wrong
  • 4
    35
    Correct
    Wrong
  • 5
    45
    Correct
    Wrong
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Answer : 1. "30"

Q:

A polygon has 14 sides then find out No. of diagonals in that polygon. 

1571 0

  • 1
    75
    Correct
    Wrong
  • 2
    76
    Correct
    Wrong
  • 3
    77
    Correct
    Wrong
  • 4
    80
    Correct
    Wrong
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Answer : 3. "77 "

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