Mathematics for IGCSE & O level - Limits Of Accuracy (Section 2 - No. 38)
A runner completes a 200m race in 24.2 seconds to the nearest tenth of a second. What are the upper and lower bounds of the runner's time?
24.1 s - 24.3 s
24.15 s - 24.25 s
24.2 s - 24.3 s
23.2 s - 24.2 s
Explanation
The time is rounded to the nearest tenth of a second, so the lower bound is 24.15 seconds and the upper bound is 24.25 seconds.
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