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Percentages Practice Set 1

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Percentages Practice Set 1

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Percentages: A Percentage is a dimensionless ratio or number expressed as a fraction of 100. It is often denoted by the character (%).
Example: 10% = [latex]\frac{10}{100}[/latex] = [latex]\frac{1}{10}[/latex]
Percentages is one of the important topic in the Quantitative Aptitude section. The article Percentages Practice Set 1 consists of different models of questions with answers useful for candidates preparing for different competitive examinations like RRB ALP/Technical Exams/Junior Engineer Recruitment Exams, SSC, IBPS PO Exams and other examinations across the globe that include Quantitative Aptitude section

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1. What percent of 120 are 90?
    A. 25% B. 50% C. 75% D. 33%

Answer: Option C
Explanation: [latex]\frac{?%}{100}[/latex] x 120 = 90 ? = 75%
2. If y exceeds x by 20%, then x is less than y by?
    A. 16% B. 16[latex]\frac{1}{3}[/latex]% C. 16[latex]\frac{2}{3}[/latex]% D. 16[latex]\frac{3}{5}[/latex]%

Answer: Option C
Explanation: x = 100, y = 120 120------20 100-------? = 16[latex]\frac{2}{3}[/latex]%
3. After decreasing 24% in the price of an article costs Rs.912. Find the actual cost of an article?
    A. 1400 B. 1300 C. 1200 D. 1100

Answer: Option C
Explanation: CP x [latex]\frac{76}{100}[/latex] = 912 CP = 12 x 100 CP = 1200
4. How much 60% of 50 is greater than 40% of 30?
    A. 18 B. 13 C. 15 D. 20

Answer: Option A
Explanation: [latex]\frac{60}{100}[/latex] x 50 – [latex]\frac{40}{100}[/latex] x 30 30 - 12 = 18
5. How much is 80% of 40 is greater than [latex]\frac{4}{5}[/latex] of 25?
    A. 4 B. 6 C. 9 D. 12

Answer: Option D
Explanation: [latex]\frac{80}{100}[/latex] x 40 – [latex]\frac{4}{5}[/latex] x 25 32 - 20 = 12
1. 40% of a number is more than 20% of 650 by 190. Find the number?
    A. 600 B. 700 C. 800 D. 900

Answer: Option C
Explanation: ([latex]\frac{40}{100}[/latex]) x – ([latex]\frac{20}{100}[/latex]) x 650 = 190 [latex]\frac{2}{5}[/latex] x = 320 x = 800
2. 25% of 30% of 45% is equal to?
    A. 0.03375 B. 0.3375 C. 3.375 D. 33.75

Answer: Option A
Explanation: ([latex]\frac{25}{100}[/latex]) x ([latex]\frac{30}{100}[/latex]) x ([latex]\frac{45}{100}[/latex]) [latex]\frac{1}{4}[/latex] x [latex]\frac{3}{10}[/latex] x [latex]\frac{9}{20}[/latex] [latex]\frac{27}{800}[/latex] = 0.03375
3. 60% of a number is added to 120, the result is the same number. Find the number?
    A. 300 B. 200 C. 400 D. 500

Answer: Option A
Explanation: ([latex]\frac{60}{100}[/latex]) x + 120 = x 2x = 600 x = 300
4. 85% of a number is added to 24, the result is the same number. Find the number?
    A. 150 B. 140 C. 130 D. 160

Answer: Option D
Explanation: ([latex]\frac{85}{100}[/latex]) x + 24 = x 3x = 480 x = 160
5. 40 is subtracted from 60% of a number, the result is 50. Find the number?
    A. 150 B. 140 C. 130 D. 110

Answer: Option A
Explanation: ([latex]\frac{60}{100}[/latex]) x – 40 = 50 6x = 900 x = 150
1. 96% of the population of a village is 23040. The total population of the village is?
    A. 32256 B. 24000 C. 24936 D. 25640

Answer: Option B
Explanation: x × ([latex]\frac{96}{100}[/latex]) = 23040 x = 240 x 100 x = 24000
2. If the price has fallen by 10% what percent of its consumption be: increased so that the expenditure may be the same as before?
    A. 11% B. 10% C. 11[latex]\frac{1}{9}[/latex]% D. 9[latex]\frac{1}{11}[/latex]%

Answer: Option C
Explanation: 100 – 10 = 90 90 ------10 100 ------? => 11[latex]\frac{1}{9}[/latex]%
3. If y exceeds x by 25%, then x is less than y by?
    A. 16% B. 16[latex]\frac{1}{3}[/latex]% C. 20% D. 16[latex]\frac{3}{5}[/latex]%

Answer: Option C
Explanation: x = 100 y = 125 125 -------- 25 100 -------- ? => 20%
4. The salary of Mr. X is 30% more than that of Mr. Y . Find what percent of Mr. Y’s salary is less than Mr. X’s?
    A. 30% B. 25[latex]\frac{1}{13}[/latex]% C. 23[latex]\frac{1}{13}[/latex]% D. 22[latex]\frac{1}{13}[/latex]%

Answer: Option C
Explanation: y = 100 x = 130 130 --------- 30 100 --------- ? => 23[latex]\frac{1}{13}[/latex]%
5. In an examination 38% of students fail in English and 61% pass in Hindi and 23% fail in both. Find the actual failure percentage?
    A. 46% B. 61% C. 54% D. 70%

Answer: Option C
Explanation: null 15 + 23 + 16 = 54%

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