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Question 1 of 8
1. Question
A sales girl gave a change of N1.15k to a customer instead of N1.25k. Calculate the percentage error.
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Question 2 of 8
2. Question
The student measured the length of a room and obtained the measurement of 3.99m. If the percentage error of this measurement was 5% and his own measurement was smaller than the length, what is the length of the room?
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Question 3 of 8
3. Question
Instead of recording the number of 1.23cm of the radius of a tube, a student recorded 1.32cm. Find the percentage error, correct to one decimal place.
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Question 4 of 8
4. Question
While doing his physics practical, Idowu recorded a reading as 1.12cm instead of 1.21cm. Calculate his percentage error.
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Question 5 of 8
5. Question
The sides of a square are increased from 20cm to 21cm. Calculate the percentage increase in its area.
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Question 6 of 8
6. Question
Mrs Kofi sold an article for G7.50 instead of G12.75. Calculate her percentage error, correct to one decimal place.
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Question 7 of 8
7. Question
Express correct to three significant figures, 0.003597.
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Question 8 of 8
8. Question
Evaluate correct to two decimal places 75.078 – 34.624 + 9.83.
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