# Percentages Quiz Set 018

### Question 1

Mr. X who spends 85% of his salary is able to save Rs. 255. What is his salary?

A

Rs. 1700.

B

Rs. 1800.

C

Rs. 1600.

D

Rs. 1900.

Soln.
Ans: a

Let the salary be x. His saving% is 100 - 85 = 15, so 15% of x = 255, which gives x = \$255/15\$ × 100 = Rs. 1700.

### Question 2

If 50% of X is Y, then Y% of 50 is?

A

25 % of X.

B

35 % of X.

C

15 % of X.

D

45 % of X.

Soln.
Ans: a

We have Y = \$(50 × X)/100\$, so Y% of 50 is same as \$(50 × X)/100\$% × 50, which can be rearranged to \$(50 × 50)/100\$% × X = 25% of X.

### Question 3

If 70% of X is Y, then Y% of 70 is?

A

49 % of X.

B

59 % of X.

C

39 % of X.

D

69 % of X.

Soln.
Ans: a

We have Y = \$(70 × X)/100\$, so Y% of 70 is same as \$(70 × X)/100\$% × 70, which can be rearranged to \$(70 × 70)/100\$% × X = 49% of X.

### Question 4

If 80% of X is Y, then Y% of 80 is?

A

64 % of X.

B

74 % of X.

C

54 % of X.

D

84 % of X.

Soln.
Ans: a

We have Y = \$(80 × X)/100\$, so Y% of 80 is same as \$(80 × X)/100\$% × 80, which can be rearranged to \$(80 × 80)/100\$% × X = 64% of X.

### Question 5

The service tax is 5%. A person receives a telephone bill amounting to Rs. 840. How much was the bill excluding tax?

A

Rs. 800.

B

Rs. 810.

C

Rs. 790.

D

Rs. 820.

Soln.
Ans: a

Let the calls be for Rs. x. The total bill is x + 5% of x = \${21x}/20 = 840\$, which gives x = Rs. 800. This Blog Post/Article "Percentages Quiz Set 018" by Parveen (Hoven) is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
Updated on 2020-02-07. Published on: 2016-05-12