Question

a can do a piece of work in 10 days while b alone can do it in 15 days . in how many days can both finish the same work.

Answer 1

Answer:

6 days..

Step-by-step explanation:

Firstly we will find 1 day work of both A and B, then by adding we can get collective days for them,

So,

A's 1 day work = 1/10

B's 1 day work = 1/15

(A+B)'s 1 day work = 1/10+1/15=1/6

Answer 2

Answer:

hdaukbjlp

Step-by-step explanation:

grduomkkjhfsa