Question

1l. A cistern can be filled by one tap in 5/2 hours and by another in 15/4 hours. How long will the cistern take to feel if they are opened together​

Answer 1

A=5/2hrs

B=15/4hrs

Let together they will full it in x hrs

1/x=5/2+15/14

1/x=2/5+4/15

1x=10/15=x=15/10=3/2hrs

1.5hrs=1hrs30min

Hope it would be helpful :)

Answer 2

Answer:

A=5/2,B=15/4

Step-by-step explanation:

let cistern filled together by A and B be 1/x.