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22-09-2017
Mathematics

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stella writes 1/7 of a page in 1/5 of a minute. how many minutes doesn’t it take her to write a full page?

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22-09-2017

First figure how much time 1/5 of a minute is by dividing 60 seconds by 5 - the answer is 12 seconds. If Stella writes only a seventh of her paper in 12 seconds, then a whole paper would be seven times that - which equals 84 seconds.

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