Question

if 4 pipes are required to completely fill a swimming pool in5 how many pipes will be required to fill the same pool in 2 hour​

Answer 1

Step-by-step explanation:

This answer assumes filling the pool with water from these 2 pipes and not actually filling the pool with pipes themselves !!!

Pipe A alone: 5 hrs, so Pipe A in 1 hr : 1/5 of pool

Pipe B alone: 9 hrs, so Pipe B in 1 hr : 1/9 of pool

Together in 1 hr : 1/5 + 1/9 = 14/45 of the pool

So, 14/45 of pool per hour OR 1 pool / (45 / 14)

45/14 = 3.2142 .. which is appx. 3 hours & 0.2142 (~0.20) is appx. 12 minutes & 42 seconds.

(This needs you to convert Minutes to decimals of an hour)

So answer is 3 hours, 12 mins and 42 seconds

Answer 2

Answer:

in 3 hours

Step-by-step explanation:

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