Can u plz help me with this question no.14
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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 = X×Y/X+Y
=> 40×30/40+30
=> 1200/70
=> 120/7
=> 17 1/7 minutes
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