Practice test

Percentage - Test Set 1

Review 20 exam-focused questions with detailed explanations, then start the interactive test when you are ready.

20 questions

Questions and explanations

Question 1
RRB NTPC
Number A is eight times of number B. By what percentage is number B less than number A?
1. 87.5%
2. 20%
3. 80%
4. 12.5%
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Question 2
RPF Constable
75 cm is what percentage of 3 meters?
1. 20%
2. 24%
3. 30%
4. 25%
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Question 3
An alloy contains 42% silver. If the alloys contains 147 grams silver, then what was quantity of other elements in the alloy?
1. 273 g
2. 350 g
3. 203 g
4. 261 g
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Question 4
SSC CGL 2023
Two numbers are, respectively, 17% and 50% more than a third number. The ratio of the two numbers is:
1. 27 : 25
2. 29 : 25
3. 19 : 11
4. 39 : 50
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Question 5
SSC CGL 2023
Two successive increments of 30% each is by what percentage more than two successive decrements of 30% each ? (Correct to two decimal places)
1. 32.54%
2. 28.15%
3. 25.25%
4. 35.29%
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Question 6
WBCS Mains 2021
Income of X is 25% more than that of the income of Y. What per cent is Y's income less than that of X's income?
1. 25%
2. 24%
3. 20%
4. 22.5%
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Question 7
WBCS Mains 2021
A survey shows that 73% of the Indians like apples, whereas 65% like oranges. What percentage of Indian like both apples and oranges?
1. 83%
2. 8%
3. 38%
4. 35%
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Question 8
Through the publicity of road safety programmes the street accident in a state has been decreased by 10% in comparison to its previous year. In the present year if the number of street accidents be 2187, the number of street accidents that had been in the state 3 years before is
1. 4000
2. 2430
3. 3000
4. 1458
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Question 9
Sushant spent 18% of his monthly salary on buying electronic goods and 32% of the monthly salary on repair work in his house. Out of remaining amount he invested 42% in fixed deposit. If he was left with Rs. 12,325, how much is his annual salary?
1. Rs. 5,18,000
2. Rs. 5, 15, 600
3. Rs. 5, 10, 000
4. Rs. 5, 01, 000
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Question 10
If a fraction $\frac{x}{y}$ becomes $\frac{6}{7}$ when its numerator is increased by 12% and denominator is decreased by 2%. Find the original fraction.
1. $\frac{3}{4}$
2. $\frac{4}{3}$
3. $\frac{1}{2}$
4. $\frac{1}{5}$
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Question 11
In a school, 60% of the students passed an examination. If the number of students who failed is 240 then the number of students who passed will be _________________.
1. 240
2. 360
3. 410
4. 600
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Question 12
The population of a town increases by 4% annually. If its population in 1991 was 210912, in 1988 how much it was?
1. 180500
2. 187500
3. 187005
4. N.O.T.
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Question 13
A number is increased by 40% and then decreased by 40%. Find the net change (in percent) in the number.
1. 16% decrease
2. 16% increase
3. no change
4. 32% decrease
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Question 14
The station master decided to increase the length by 3% and decrease the width by 3% of a rectangular digital board. Find the total change in the area of the board?
1. 0.06% decrease
2. 0.09% increase
3. 0.04% decrease
4. 0.09% decrease
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Question 15
If the income of Sachin is $\frac{50}{7}$ % more then of Sohan, the income of Sohan is less then that of Sachin approximately by:
1. 5.67%
2. 8.67%
3. 6.67%
4. 7.67%
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Question 16
If length and breadth of a cuboid is increased by 25%, then by how much percent the height should be decreased to keep the volume same?
1. 25%
2. 44%
3. 36%
4. 48%
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Question 17
Martin donates 13% of his salary to an institution of blind, 12% of orphans, and 14% of the body of the organism, and gives 16% of his salary as help in setting up a medical camp. The remaining Rs.42,300 deposits in the bank for the monthly expanse. How much does he donate to the orphans? (In Rs.)
1. 11,480
2. 11,580
3. 11,280
4. 11,380
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Question 18
In a 20 litres mixture, 20% is alcohol and the rest water. If 5 litres of water is added, then what will be the percentage of Alcohol in the new mixture?
1. 16
2. 15
3. 18
4. none of these
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Question 19
Group-D 31/10/2018 (Shift-02)
Last year, Manish Korner had invested 1 lacs on shop-2 for changing the furniture. He collected the expenditure in next three quarters: 20% in quarter-1, 55% in quarter-2. what was the amount (in Rs.) in quarter-3?
1. Rs.60500
2. Rs.70000
3. Rs.62600
4. Rs.62500
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Question 20
A solution is prepared using 520 gram water and 45 gram salt. Calculate the concentration in terms of mass by mass percentage of the solution.
1. 8.86%
2. 8.1%
3. 7.96%
4. 6.96%
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Questions and explanations

Question 1

Question 2

Question 3

Question 4

Question 5

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Question 7

Question 8

Question 9

Question 10

Question 11

Question 12

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Question 19

Question 20