Question 10 • SS-Math 7
Round each lap time to the nearest whole second: 56.6 → 57, 57.9 → 58, 57.5 → 58, 65.3 → 65, and 65.7 → 66. Adding the rounded times gives 57 + 58 + 58 + 65 + 66 = 304 seconds, so the estimated total is 304 seconds.
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