A weight is measured as 9.8 kg instead of 10 kg. What is the percentage error? MCQ with Answer and Explanation

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A weight is measured as 9.8 kg instead of 10 kg. What is the percentage error?

A. 2%

B. 1%

C. 4%

D. 3%

Answer: Option A

Solution (By JKSSB Mock Tests)

Error = 10 - 9.8 = 0.2. % Error = (0.2 / 10) * 100 = 2%.

This question belongs to: Maths Percentage

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Practice More Percentage Questions

Question #1

Kerosene price up 20%. To keep expenditure same, reduce consumption by:

A. 18%

B. 15%

C. 16.67%

D. 20%

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Correct Answer: Option C

Explanation:
Reduction = (20/120)×100 = 16.67%.

This question belongs to: Maths Percentage

Question #2

If 18% of x is 90, then x = ?

A. 500

B. 550

C. 400

D. 450

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Correct Answer: Option A

Explanation:
0.18x = 90 → x = 500.

This question belongs to: Maths Percentage

Question #3

To pass an exam, 40% is required. A student got 150 marks and failed by 30 marks. Maximum marks are:

A. 400

B. 550

C. 450

D. 500

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Correct Answer: Option C

Explanation:
Pass marks = 150 + 30 = 180. 40% of Max = 180 → Max = 180/0.4 = 450.

This question belongs to: Maths Percentage

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