If 15% of a number is subtracted from 30% of that number, the result is 45. The number is: MCQ with Answer and Explanation

Question

Share Report Error

If 15% of a number is subtracted from 30% of that number, the result is 45. The number is:

A. 350

B. 400

C. 300

D. 250

Answer: Option C

Solution (By JKExamLibrary)

0.3x - 0.15x = 45 → 0.15x = 45 → x = 300.

This question belongs to: Maths Percentage

Request complete Subject PDF

Discuss this Question (0)

No comments yet. Be the first to start the discussion!

Practice More Percentage Questions

Question #1

Share Report

A shopkeeper sells an article at 10% profit. Had he bought it at 20% less and sold it for Rs. 12 less, he would have gained 25%. The cost price is:

A. Rs. 120

B. Rs. 140

C. Rs. 100

D. Rs. 150

View Answer & Solution Discuss

Get Complete Subject PDF for Maths

Correct Answer: Option A

Explanation:
CP=x, SP=1.1x. New CP=0.8x, new SP=1.1x-12 = x → 0.1x=12 → x=120.

This question belongs to: Maths Percentage

Question #2

Share Report

A machine depreciates 10% per year. Its value after 1 year if purchased for Rs. 50,000 is:

A. 46,000

B. 44,000

C. 47,000

D. 45,000

View Answer & Solution Discuss

Get Complete Subject PDF for Maths

Correct Answer: Option D

Explanation:
Value = 50,000 × 0.9 = 45,000.

This question belongs to: Maths Percentage

Question #3

Share Report

If the price of a commodity decreases by 10%, by what percentage can the consumption increase so that the expenditure remains the same?

A. 11.11%

B. 10%

C. 12.5%

D. 9.09%

View Answer & Solution Discuss

Get Complete Subject PDF for Maths

Correct Answer: Option A

Explanation:
Required increase = (10 / 90) * 100 = 100 / 9 = 11.11%.

This question belongs to: Maths Percentage

Explore All Percentage MCQs