Mathematics for IGCSE & O level - Limits Of Accuracy (Section 2 - No. 13)
A winning time is given as 34.91 seconds to the nearest hundredth of a second. Between which two times does the actual winning time lie?
34.90 seconds and 34.92 seconds
34.905 seconds and 34.915 seconds
34.91 seconds
34.915 seconds and 34.925 seconds
Explanation
The time is to the nearest hundredth of a second, so the lower bound is 34.91 - 0.005 = 34.905 seconds and the upper bound is 34.91 + 0.005 = 34.915 seconds.
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