Price of TV increased 30% then decreased 30%. Net change: MCQ with Answer and Explanation

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

A. 9% decrease

B. No change

C. 6% decrease

D. 9% increase

Answer: Option A

Solution (By JKSSB Mock Tests)

1.3 × 0.7 = 0.91, 9% decrease.

This question belongs to: Maths Percentage

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Practice More Percentage Questions

Question #1

A cricket team won 60% of 50 matches. Matches lost:

A. 24

B. 18

C. 20

D. 22

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Correct Answer: Option C

Explanation:
Lost = 40% of 50 = 20.

This question belongs to: Maths Percentage

Question #2

A student multiplied a number by 3/4 instead of 4/3. What is the percentage error?

A. 43.75%

B. 45%

C. 40%

D. 50%

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Correct Answer: Option A

Explanation:
True = 4/3x. False = 3/4x. Error = (4/3 - 3/4)x = (7/12)x. % Error = ((7/12) / (4/3)) * 100 = (21/48) * 100 = 43.75%.

This question belongs to: Maths Percentage

Question #3

55% of a number is 33 less than 70% of the same number. The number is:

A. 220

B. 200

C. 240

D. 180

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Correct Answer: Option A

Explanation:
0.7x - 0.55x = 33 → 0.15x = 33 → x = 220.

This question belongs to: Maths Percentage

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