# Aptitude - Percentages Online Quiz

Following quiz provides Multiple Choice Questions (MCQs) related to **Percentages**. You will have to read all the given answers and click over the correct answer. If you are not sure about the answer then you can check the answer using **Show Answer** button. You can use **Next Quiz** button to check new set of questions in the quiz.

### Answer : A

### Explanation

Let the unknown value is p, then p = (^{35}⁄_{100}x 980 +^{150}⁄_{100}x 850) - (^{40}⁄_{100}x 1640 ) p = 343 + 619 = 962

Q 2 - It costs Rs. 1 to photocopy a sheet of paper. However, 2% discount is allowed on all photocopies done after first 1000 sheets. How much will it cost to copy 5000 sheets of paper?

### Answer : C

### Explanation

Cost = 1 x 1000 + (100-2)% of 1 x 4000 = 1000 + (98)% of 4000 = 1000 + 3920 = Rs. 4920

Q 3 - In an examination, 35% of the students passed and 455 failed. How many students appeared for the examination?

### Answer : A

### Explanation

Let s be the number of students appeared for the examination. Then, 65% of s = 455 i.e.^{65}⁄_{100}s = 455 Therefore, Students = 700

### Answer : D

### Explanation

→ Z% of Z = 36 Therefore, (^{Z}⁄_{100})x Z = 36 Z = 60

Q 5 - In a recent survey, 40% houses contained two or more people. Of those house containing only one person, 25% were having only a male. What is the percentage of all houses, which contain exactly one female and no males?

### Answer : D

### Explanation

Let Z be the number of houses. Therefore, number of houses having one family = (100 - 25)% of (100 - 40)% of Z = (^{75}⁄_{100}x^{60}⁄_{100}x Z) Z = 45%

Q 6 - If the side of a square is increased by 25%, its area is increased by

### Answer : A

### Explanation

Let side =100m Area = 100*100=10000 m^{2}New area =125*125=15625 m^{2}Increase in area = 5625/10000*100=56.25%

Q 7 - The population of a town increases 5% annually but is decreased by immigration annually to the extent of 0.5 % .what will be the increase percent in 3 years

### Answer : A

### Explanation

Increase in 3 years over 100 =100 * ( 1+ 9/(2*100))3 =114.11 %AGE INCREASE = 11.4%

Q 8 - A Man donated 5% of his income to a trust and deposited 20 % of the remainder in bank. If he now gets Rs. 1919 left, what is his income.

### Answer : C

### Explanation

Let his income be x, then x-5% of x - 20% of 95% of x = 1919 0r x-x/20-(20*95*x)/(100*100)=1919 x=Rs.2525

### Answer : C

### Explanation

Let x% of 24 = 0.72. Then, (x/100*24)=0.72= 72/100=>24x=72 =>x=3.

Q 10 - The production of company A increased by 25% from 1994 to 1995 and its production further increased by 60% from 1995 to 1996. What is the total percent increase in production from 1994 to 1996?

### Answer : D

### Explanation

Production in 1996 = 160/100 * 125/100 * Production on 1994 = 20000/10000 * Production on 1994 = 2 * Production on 1994 ∴ Required % Increase = {(Production on 1996 - Production on 1994)/ Production on 1994}*100% Consider, Production on 1994 = x. Then, Production on 1996 = 2x. = (2x – x)/x * 100%= 100%