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Aptitude Percentage Test Paper 3


11) The population of a town is decreasing at a rate of 10% per annum. If the population two years ago was 20,000, what is the present population?

  1. 15000
  2. 15200
  3. 16000
  4. 16200

Correct answer; option (D)

Explanation:

Apply formula:

Aptitude Percentage39

=16200


12) Two candidates contested an election. The winning candidate scored 54% and won by 88 votes. If 58 votes were declared invalid, find the total number of votes polled in the election?

  1. 1042
  2. 1100
  3. 1158
  4. 1188

Correct answer; option (C)

Explanation:

Let the valid votes = x

As per question; 54% of x-46% of x = 88

8% of x = 88

Aptitude Percentage40

∴ Total votes polled = valid votes + invalid votes

= 1100 + 58 = 1158


13) 1200 boys and 800 girls appeared in an examination. If 60% of the boys and 40% of the girls passed the examination, what is the percentage of candidates who failed in the examination?

  1. 48 %
  2. 52 %
  3. 45 %
  4. 42 %

Correct answer; option (A)

Explanation:

Number of students failed = 40 % of boys (1200) + 60 % of girls (800)

Aptitude Percentage56

= 480 + 480 = 960

Total number of students = 1200 + 800 = 2000

∴ Percentage of candidates failed = Aptitude Percentage56* 100

= Aptitude Percentage56 * 100 = 48 %


14) In an examination, 25% candidates failed in English and 35 % students failed in Math.If 15 % candidates failed in both, what is the percentage of candidates who passed in both the subjects?

  1. 45 %
  2. 50 %
  3. 55 %
  4. 58 %

Correct answer; option (C)

Explanation:

Apply formula: = 100 - (x + y - z)

x = 25%

y = 35 %

z = 15 %

∴ Required percentage of candidates = 100 - (25 + 35 - 15)

= 100 - 45 = 55%


15) Naresh's monthly income is reduced by 15%. By what percentage his monthly income must be increased so that it is again equal to his original monthly income?

  1. 16.6%
  2. 15.6%
  3. 14.6%
  4. 17.6%

Correct answer; option (D)

Explanation:

Let Naresh's monthly income is x.

New income = x - 15% x

Apti Percentage 59

The income is reduced by Apti Percentage 60,So, Apti Percentage 61 should be added to his new incomeApti Percentage 62 so that it becomes equal to his original monthly income.

∴ Required percentage increase in monthly income =Apti Percentage 63* 100

Apti Percentage 64


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Percentage Concepts





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