Question

A tank can be filled
by the pipe A in 2 hours and pipe B in 6 hours. At 10 A.M. Pipe A was opened.At what time will the tank be
filled if pipe B is opened at 11 A.M. ?
a) 12:45 A.M(b) 5 P.M (c) 11.45 A.M. (d) 12 P.M.
.

Answer 1

Answer:

Step-by-step explanation:

Pipe A will fill 3 units till 11 am.

Remaining capacity = 6−3=3 units

Now both pipes will fill the tank in

=3/(3+1)=3/4hours

So,(11+3/4)am, tank will be filled

so your answer is 11 : 45 A.M.

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