A man starts climbing a hill. Every minute he ascends 20 meters. How long will he take to ascend a point 80 meters high?
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Step-by-step explanation:
He ascends 80 meters in 320 seconds. Dividing 320 by 60 to convert this into minutes, we get 5 as the quotient and 20 as the remainder. The quotient is taken as the whole number of minutes and the remainder is taken as the seconds. Therefore, he takes 5 minutes and 20 seconds.
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