Question

Two water taps together can fill a tank in 6 hour and 40 minutes. Find the time each will take to fill the tank if one of the two pipes can fill it in 3 hours less than the other.

Answer 1

Answer:

Step-by-step explanation:

let the first pipe fills the tank in x hrs

1/x+1/x-3=3/20

(2x-3)/(x^2-3x)=3/20

40x-60=3x^2-9x

3x^2-49x+60=0

3x^2-45x-4x+60=0

3x(x-15)-4(x-15)=0

x=15,x=4/3

pipe 1=15 pipe2=12

pipe1==4/3,pipe2=5/3