Maths Practice Question and Answer

Q: If 2A=3B=4C, then A:B:C will be- 5639 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:

Find the value of sin2 10 + sin2 20 + sin2 30 + ....... + sin2 80.

5598 0

  • 1
    3
    Correct
    Wrong
  • 2
    4
    Correct
    Wrong
  • 3
    0
    Correct
    Wrong
  • 4
    1
    Correct
    Wrong
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Answer : 2. "4"

Q:

One of the diagonals of a rhombus is 70% of the other diagonal, what is the ratio of area of rhombus to the square of the length of the larger diagonal? 

5568 0

  • 1
    7:20
    Correct
    Wrong
  • 2
    7:10
    Correct
    Wrong
  • 3
    3:10
    Correct
    Wrong
  • 4
    3:20
    Correct
    Wrong
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Answer : 1. "7:20 "

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 ? 5502 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: 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? 5495 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:

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.

5441 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: Cost price of 21 objects is equal to selling price of 15 objects. What is the profit? 5422 0

  • 1
    25%
    Correct
    Wrong
  • 2
    30%
    Correct
    Wrong
  • 3
    33%
    Correct
    Wrong
  • 4
    40%
    Correct
    Wrong
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Answer : 4. "40%"

Q: If (-):(+)=12:19, then a:b=___ 5411 3

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

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