Anita can clean a typical pool in 8 hours Chao can clean a t

Anita can clean a typical pool in 8 hours. Chao can clean a typical pool in 6 hours. How long should it take Anita and Chao working together to clean a typical pool? Show all your work. Leave your final answer as an integer or reduced fraction.

Solution

let A ,C denotes Anita ,Chao.

A can clean a typical pool in hours=1/8

C can clean a typical pool in hours=1/6

(A+C)\'s can clean a typical pool in hours=1/8+1/6=(3+4)/24=7/24

so both A and C will clean a typical pool in (24/7) hours