MATHEMATICS

JAMB 2015 - Question 23

Mathematics 2015 JAMB Past Questions - Question 23: If a student measured the length of a table to be 2.30m instead of 2.50m.What was the percentage error in measuring the length of the table ?

If a student measured the length of a table to be 2.30m instead of 2.50m.What was the percentage error in measuring the length of the table ?
A:
B:
C:
D:
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Correct Answer

B

Explanation

E=2.5-2.3E=0.2P.E=0.2/2.5 *100=8%The percentage error in measuring the length of the table can be calculated using the formula:Percentage Error = (|True Value - Measured Value| / True Value) * 100%Given:True Value = 2.50 mMeasured Value = 2.30 mUsing the formula:Percentage Error = (|2.50 - 2.30| / 2.50) * 100%Percentage Error = (0.20 / 2.50) * 100%Percentage Error = 0.08 * 100%Percentage Error = 8%Therefore, the percentage error in measuring the length of the table is 8%.

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