Question

7) 12 pipes fill a tank in 120 min; then How much time 5 pipes will take to fill the tank?

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Answer 1

First take out how much time will take in 1 tank so we will divide 120/12 = 10 min now multiply 5 by 10 is to 50 min this is the ans

Answer 2

12*120=5*x

12*120=5*x12*120÷5=x

12*120=5*x12*120÷5=xTherefore 5 pipes will take 288 minutes or 4.8 hours

hope this helps you.......

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