Price of sugar increased 30%. Expenditure to rise only 10%. Consumption reduced by: MCQ with Answer and Explanation

Price of sugar increased 30%. Expenditure to rise only 10%. Consumption reduced by:

A. 16.67%

B. 15.38%

C. 18%

D. 14.5%

Answer: Option B

1.3 × x = 1.1 → x = 1.1/1.3 ≈ 0.84615, reduction 15.38%.

This question belongs to: Maths Percentage

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Question #1 Report Error

If 20% of a number is added to another number, the second number increases by 50%. What is the ratio of the first number to the second number?

A. 2:5

B. 1:2

C. 2:1

D. 5:2

Correct Answer: Option D

Explanation:
Let first = x, second = y. 0.2x + y = 1.5y → 0.2x = 0.5y → x/y = 0.5/0.2 = 5/2. Ratio = 5:2.

This question belongs to: Maths Percentage

Question #2 Report Error

Price of TV increased 30% then decreased 30%. Net change:

A. 6% decrease

B. 9% increase

C. No change

D. 9% decrease

Correct Answer: Option D

Explanation:
1.3 × 0.7 = 0.91, 9% decrease.

This question belongs to: Maths Percentage

Question #3 Report Error

In 60 L of milk-water mixture, water is 10%. How much water must be added to make water 25%?

A. 6 L

B. 12 L

C. 10 L

D. 8 L

Correct Answer: Option B

Explanation:
Water = 6 L, milk = 54 L. For water 25%, milk 75%, total = 54/0.75 = 72 L, add 12 L.

This question belongs to: Maths Percentage