Percentage Aptitude Questions Practice Question and Answer

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Answer : 1. "3"

Q:

In two successive year 100 and 75 students of school appeared at the final examination. Respectively 75% and 60 % of them passed. The average rate of pass is:

1520 0

  • 1
    $$80{1\over2}\%$$
    Correct
    Wrong
  • 2
    80%
    Correct
    Wrong
  • 3
    $$68{4\over7}\%$$
    Correct
    Wrong
  • 4
    78%
    Correct
    Wrong
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Answer : 3. "$$68{4\over7}\%$$"

Q:

If the population of a town is 12.000 and the population increases at the rate of 10% per annum, then find the population. after 3 years.

1511 0

  • 1
    15,972
    Correct
    Wrong
  • 2
    12,200
    Correct
    Wrong
  • 3
    11,200
    Correct
    Wrong
  • 4
    10,200
    Correct
    Wrong
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Answer : 1. "15,972"
Explanation :

To find the population after 3 years given that it increases at a rate of 10% per annum, you can use the formula for exponential growth:

𝑃=𝑃0×(1+𝑟)𝑛P=P0×(1+r)n

Where:

  • 𝑃P = Population after 𝑛n years
  • 𝑃0P0 = Initial population
  • 𝑟r = Rate of increase (in decimal form)
  • 𝑛n = Number of years

Given:

  • 𝑃0=12,000P0=12,000 (Initial population)
  • 𝑟=0.10r=0.10 (10% increase per annum)
  • 𝑛=3n=3 (Number of years)

Substitute these values into the formula:

𝑃=12,000×(1+0.10)3P=12,000×(1+0.10)3

𝑃=12,000×(1.10)3P=12,000×(1.10)3

𝑃=12,000×(1.331)P=12,000×(1.331)

𝑃=15,972P=15,972

So, the population after 3 years would be approximately 15,972.


Q:

The income of A is 25% more than that of B and the income of C is 65% less than the sum of the incomes of A and B. Income of C is what percent less than the income of A?

1509 0

  • 1
    32
    Correct
    Wrong
  • 2
    37
    Correct
    Wrong
  • 3
    35
    Correct
    Wrong
  • 4
    28
    Correct
    Wrong
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Answer : 2. "37"

Q:

It was compulsory to get 36% marks in a paper to Rakesh to pass it. He got only 24 % marks and failed by 9 marks. Total marks of paper was-

1508 0

  • 1
    66
    Correct
    Wrong
  • 2
    75
    Correct
    Wrong
  • 3
    62
    Correct
    Wrong
  • 4
    100
    Correct
    Wrong
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Answer : 2. "75"

Q:

If the present population of a village is 55,566, which was 35000 2 years ago, then find the rate of increase of population per year.

1507 1

  • 1
    24%
    Correct
    Wrong
  • 2
    25%
    Correct
    Wrong
  • 3
    23%
    Correct
    Wrong
  • 4
    26%
    Correct
    Wrong
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Answer : 4. "26%"

Q:

A student scored 32 percent and failed by 6 marks. If he had scored 36 percent marks, he would have passed by 2 marks. What is the passing mark?

1503 0

  • 1
    66
    Correct
    Wrong
  • 2
    75
    Correct
    Wrong
  • 3
    80
    Correct
    Wrong
  • 4
    70
    Correct
    Wrong
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Answer : 4. "70"

Q:

Vikram gives 35% of the money he had to his wife and gave 50% of the money he had to his sons. Remaining amount of Rs. 11,250 he kept for himself. What was the total amount of money Vikram had?

1502 1

  • 1
    Rs. 63,750
    Correct
    Wrong
  • 2
    Rs. 75,000
    Correct
    Wrong
  • 3
    Rs. 73,650
    Correct
    Wrong
  • 4
    Rs. 72, 450
    Correct
    Wrong
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Answer : 2. "Rs. 75,000"

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