Question

A can do a piece of work in 10 days, and B can do the same work in 20 days. With the help of C, they finished the work in 4 days. C can do the work in how many days, working alone?​

Answer 1

Answer:

hlo

your answer is here !

Step-by-step explanation:

Their combined 4 day work = 4(1/10 + 1/15) = 12/20 = 3/5.

Remaining work = 1 – 3/5 = ⅖.

This means C did 2/5 work in 4 days,

hence he can finish the complete work in 5/2 × 4 = 10 days.

$follow \: \: \: me$