two inlet pipes A and B can fill an empty cistern in 2 hours and 4 hours, respectively. If both are opened together in the empty cistern , how much time will they take to fill it completely?
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pipe 1 - 1/2 per hour
pipe 2 - 1/4 per hour
pipe(1+2) = 5/6 per hour
time taken = 6/5 hours or 1 hr and 12 min
Thank you.....
pipe 2 - 1/4 per hour
pipe(1+2) = 5/6 per hour
time taken = 6/5 hours or 1 hr and 12 min
Thank you.....
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