Question

A and B can fill a tank in 2 hours, B and C can do it in 3 hours and A and C can do it in 4 hours. How long will A, B and C take to fill the tank if they work simultaneously ?​

Answer 1

Step-by-step explanation:

A+B can fill a tank in 2 hrs

then,A+B can fill 1/2 tank in 1 hrs

similarly,B+C can fill 1/3 tank in 1 hrs

and A+C can fill 1/4 tank in 1 hrs

so,2(A+B+C) can fill tank in one hour (1/2+1/3+1/4)=13/12

then,A+B+C can fill tant in one hour is 13/24 part

full tank can be filled up by A,B and C in 24/13 hours that is 1(11/13) hrs

Answer 2

Answer:

please ask any other person