Mathematics, 27.01.2021 19:00 fatlenny
The runner’s time to complete his 3rd marathon was 10% less than the time to complete his first marathon. If he finished his 3rd race in 279 minutes, how long did he take to run his first, original marathon?
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The runner’s time to complete his 3rd marathon was 10% less than the time to complete his first mara...
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