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P6 Mathematics

Question post on Mon, 15/05/2017 2:52pm

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

as my answer is 30 mins per child.

thank you.

Smartwolf · Answer 1 · Post on Tue, 11/09/2018 10:37pm

Smartwolf Post on Tue, 11/09/2018 10:37pm

90mins

alfretztay · Answer 2 · Post on Mon, 15/05/2017 7:47pm

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.

ATM82517 · Answer 3 · Post on Tue, 16/05/2017 1:04pm

ATM82517 Post on Tue, 16/05/2017 1:04pm

Thk you.

alfretztay · Answer 4 · Post on Tue, 16/05/2017 8:37pm

alfretztay Post on Tue, 16/05/2017 8:37pm

Don’t mention.

BigDevil · Answer 5 · Post on Mon, 15/05/2017 3:53pm

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

ATM82517 · Answer 6 · Post on Tue, 16/05/2017 1:05pm

ATM82517 Post on Tue, 16/05/2017 1:05pm

thank you.