Question

Acan do a piece of work in 10 days and B can do the same work in 20 days. With the help of C they finish the work in 5 days. How long will it take for C alone to finish the work?

(a) 20 days (b) 10 days(c) 35 days(d) 15 days​

Answer 1

Answer:

C can do in 20day

Step-by-step explanation:

1/10+1/20+x=1/5. x=1/5-1/10-1/20. x=1/5-3/20. x=1/20