Question

4. A can do a piece of work in 6 hours, while B can do it in 8 hours. With the help of c. they completed the work in 5
upon 2 hours. How much time can C complete the work alone ?​

Answer 1

Answer:

120/13 hours

Step-by-step explanation:

A's 1 hr work=1/6

B's 1 hr work=1/8

let c's 1 hr work be x

A's 1 hr work+B's 1 hr work+c's 1 hr work=1/(5/2)

1/6+1/8+x=2/5

7/24+x=2/5

x=2/5-7/24

c's 1 hr work==13/120

time taken by C to complete the work alone=120/13 hrs