Question

a pipe can fill for water tank in 2 hour 20 minutes how long will it take to fill 7 such tank
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Answer 1

16.3333333333 hours after doing the math

Answer 2

Answer =Time taken by a pipe to fill 4 tanks =2H 20 min

first convert hour in minute so , 1hour =60 minute

so, 2 hour =60×2 ( 120 min )

so total minutes = 120+ 20 = 140 minutes

So, time taken by a pipe to fill one tank = 140 / 4 =35 minutes

so , time taken by a pipe to fill 7 tanks = 35×7

= 245minutes or 245/60

=4.83 hour