Question

A runner's time in a race is 34.87 seconds to the nearest second. Determine the upper and lower bounds of this value.

a) 34.87 seconds
b) 34 seconds
c) 35 seconds
d) 33 seconds

Answer 1

The upper and lower bounds for the runner's time in the race are 35 seconds and 34 seconds, respectively.

Step-by-step explanation:

The runner's time in the race is given as 34.87 seconds to the nearest second.

To determine the upper and lower bounds of this value, we look at the possible range of values that round to 34.87 seconds. When rounding to the nearest second, any value between 34.5 and 35.4 would round to 35 seconds. Therefore, the upper bound is 35 seconds.

Similarly, any value between 34.4 and 33.5 would round to 34 seconds. Therefore, the lower bound is 34 seconds.

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