Math, asked by brightness, 11 months ago

Can u plz help me with this question no.14

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Answers

Answered by harishbaland
1

Step-by-step explanation:

Hose A = 40 minutes

hose B = 30 minutes

=> Formula if a and b do some work in X,Y time

=> total time taken = Y/X+Y

=> 40×30/40+30

=> 1200/70

=> 120/7

=> 17 1/7 minutes

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