Question

4. A can do a piece of work in 20 days while B can do it in 15 days. With the help of C, they finish
the work in 5 days. In what time would C alone do it?​

Answer 1

Answer:

20 days by A

15 days by B

5 days by both three

so they give A, B 20 + 15 + c = 5 days

so A+ B+ C = 5 and what is c

Step-by-step explanation:

so c can do it in 20 ×15-5 /5 = 20 days as A or 15 days as B