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primary 5 Maths Rate & Ratio Singapore

Plz need help..

Date Posted: 4 years ago

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(a) water drain for 1min= from graph for 550 and for 30min=400
Difference = 550-400=150 litres
1 min=150/30 =5 litre

(b) if 1min=5 litre
So for 550 litres = 550/5
=110 minutes

To drain 550 litre completely it will take 110 min

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Date Posted: 4 years ago

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Priyanka

4 years ago

Thanks

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