Question

6 pipes fill a tank in 120minutes ,then 5 pipes will fill it in

Answer 1

6 pipes fill a tank in 120minutes ,then 5 pipes will fill it in 100 minutes

Answer 2

first divide 120 by 6 . we get 20. so in 20 min the pipe fills the tank. then multiply 5 to 20. we get 100 .this is the answer