Question
Charlie's timing for running in his first five heats were 55 s, 57 s, 44 s, 48 s, and 46 s. He wishes to improve his overall average timing by 1 s. What timing must he clock in the sixth heat?
2 m

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Charlie's timing for running in his first five heats were 55 s, 57 s, 44 s, 48 s, and 46 s. He wishes to improve his overall average timing by 1 s. What timing must he clock in the sixth heat?