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Mathematics, 23.05.2020 17:58 lIechonoxIl
Contestants in a dance-a-thon rest for the same amount of time every hour. A couple rests for 9 minutes in 3 hours. How long did they rest in 4 hours?
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Contestants in a dance-a-thon rest for the same amount of time every hour. A couple rests for 9 minu...
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