Maths Practice Question and Answer

Q:

How many pairs of twin primes are there between the integers 1 to 100? 

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  • 1
    5
    Correct
    Wrong
  • 2
    6
    Correct
    Wrong
  • 3
    7
    Correct
    Wrong
  • 4
    8
    Correct
    Wrong
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Answer : 4. "8"

Q:

The interest compounded annually on a sum of Rs. 56000 at a rate of 7% p.a. after 3 years is what percentage of the simple interest on a sum of Rs. 72000 at a rate of 9% p.a. after 5 years?

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  • 1
    32.22%
    Correct
    Wrong
  • 2
    34.44%
    Correct
    Wrong
  • 3
    35.55%
    Correct
    Wrong
  • 4
    37.77%
    Correct
    Wrong
  • 5
    38.88%
    Correct
    Wrong
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Answer : 5. " 38.88%"
Explanation :

Q:

The average of a collection of 20 measurements was calculated to be 56 cm . But later it was found that a mistake had occurred in one of the measurements which was recorded as 64 cm, but should have been 61 cm. The correct average must be: 

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  • 1
    55.85 cm
    Correct
    Wrong
  • 2
    56.15 cm
    Correct
    Wrong
  • 3
    53 cm
    Correct
    Wrong
  • 4
    54.5 cm
    Correct
    Wrong
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Answer : 1. "55.85 cm "

Q:

0.08% of 120% of 40,000 is equal to___.

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  • 1
    384
    Correct
    Wrong
  • 2
    38.4
    Correct
    Wrong
  • 3
    3.84
    Correct
    Wrong
  • 4
    0.384
    Correct
    Wrong
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Answer : 2. "38.4"

Q:

O is the incentre of ∆ABC and ∠A = 30° then ∠BOC is

1336 0

  • 1
    100°
    Correct
    Wrong
  • 2
    105°
    Correct
    Wrong
  • 3
    110°
    Correct
    Wrong
  • 4
    90°
    Correct
    Wrong
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Answer : 2. "105° "

Q:

What is the quotient , when 2645 is divided by 48 ? 

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  • 1
    53
    Correct
    Wrong
  • 2
    55
    Correct
    Wrong
  • 3
    57
    Correct
    Wrong
  • 4
    51
    Correct
    Wrong
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Answer : 2. "55 "

Q:

A sum of ₹ 3000 yields an interest of ₹ 1080 at 12% per annum simple interest in how many years ?

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  • 1
    4 Years
    Correct
    Wrong
  • 2
    3 Years
    Correct
    Wrong
  • 3
    5 years
    Correct
    Wrong
  • 4
    2½ Years
    Correct
    Wrong
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Answer : 2. "3 Years"

Q:

Directions: The bar graph shows the results of an annual examination in a secondary school in a certain year. Answer the following four questions based on this chart.

The class has the highest number of passed students, is 

1335 0

  • 1
    VII
    Correct
    Wrong
  • 2
    IX
    Correct
    Wrong
  • 3
    VIII
    Correct
    Wrong
  • 4
    X
    Correct
    Wrong
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Answer : 4. "X"

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