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Question

hi, pls kindly explain why the answer is 90 mins per child.

as my answer is 30 mins per child.

 

thank you.

 

Answer

90mins

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12 noon to 3.30 p.m. ——- 3.5h

3 (swings) x 3.5 (h) ——- 10.5

10.5/7 = 1.5

1.5h = 90 min

Ans : 90 min.

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Thk you. 

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Don’t mention.

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From  12 noon to 3.30pm is 3.5 hours, or 210 mins.

Since there were 3 swings, there would be a total of 210 x 3 = 630 mins of play time

630 ÷ 7 = 90 mins per child

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thank you.

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