# 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 : D

### Explanation

60% of 264 =^{60}⁄_{100}x 264 = 158.4 50% of 234 =^{50}⁄_{100}x 234 = 117 70% of 164 =^{70}⁄_{100}x 164 = 114.8 20% of 1500 =^{20}⁄_{100}x 1500 = 300 15% of 1056 =^{15}⁄_{100}x 1056 = 158.4

Q 2 - The sum of two numbers is 2490. If 6.5% of one number is equal to 8.5% of the other, then the numbers are?

### Answer : A

### Explanation

Let p and q be the numbers. Then, 6.5% of p = 8.5% of q p =^{85}⁄_{65}q i.e p =^{17}⁄_{13}q Now, p + q = 2490 i.e.^{17}⁄_{13}q + q = 2490 Therefore, q = 1079 This shows the two numbers are : q = 1079 and^{17}⁄_{13}q = 1411 = p

Q 3 - The price of a car is Rs. 325000. It was insured to 85% of its price. The car met with an accident and the insurance company paid 90% of the insurance. What was the difference between the price of the car and the amount received?

### Answer : A

### Explanation

Amount = 90% of 85% of Rs. 325000 =^{90}⁄_{100}x^{85}⁄_{100}x 325000 = Rs. 248625 The difference between the price of the car and the amount received is : 325000 - 248625 = Rs. 76375

### Answer : D

### Explanation

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

Q 5 - The monthly salary of Abdul is Rs 60000. He spend 20% of it on the education of his children, 25% on house rent, 5% on travels, 30% on food, 8% on miscellaneous items and rest he saves for the future. Find his savings.

### Answer : B

### Explanation

Total expenditure = (20 + 25 + 5 + 30 +8)% = 88% Savings = 100% - 88% = 12% => His savings = 12/100 * 60000 = 7200

Q 6 - A rectangle has width 'a' and length 'b'. If the width is decreased by 20% and length is increased by 10%, what is the area of the new rectangle in percentage compared to 'ab'?

### Answer : A

### Explanation

New width = (80/100)*a = 4a/5 New length = (110/100)*b = 11b/10 Area of new rectangle = 4a/5 * 11b/10 = 22ab/25 ∴ Area of new rectangle in percentage compared to ab = (22ab/25)/25 * 100 = 88%

Q 7 - 10% income of A is equal to 15% income of B and 12% of income of B is equal to 20%of income of C. If the income of C is 1000, the total income of A, B and C is

### Answer : A

### Explanation

12% of income of B = 20%of income of C 12%B=20%C B=20/12C=5/3C=5/3*1000 10% income of A = 15% income of B 10%A=15%B A=10/15B=2/3B =2/3*5/3*1000=10000/9 A+B+C=3777.77

Q 8 - The population of a town is 176400. It increases annually at the rate of 5% p.a. What was it 2 years ago?

### Answer : A

### Explanation

Population 2 years ago = 176400/(1+5/100)^{2}=(176400*20/21*20/21)=160000.

### Answer : C

### Explanation

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

Q 10 - 72% of the students of a certain class took Biology and 44% took Mathematics. If each student took at least one subject from Biology or Mathematics and 40 took both, then the total number of students in the class is

### Answer : C

### Explanation

Let the number of students in the class be 100. ∴ Number of students in Biology = 72 and number of students in Maths = 44. ∴ Number of students opting for both the subjects = 72 + 44 – 100 = 16 When 16 students opt for both the subjects, total number of students = 100 ∴ When 40 students took both the subjects, total number of students = (100/16)*40 = 250