Question

mohan can do a piece of work in 10 days and suman can do it in 15 days how long will they take if both work together​

Answer 1

Answer:

6 days

Step-by-step explanation:

Mohan can do a piece of work in 10 days and Suman can do it 15 days. If both of them are working together, half of the work can be finished in?

LCM of 10 and 15 is 30.

Mohan can do (1/10th) of the work in one day (or 3/30th).

Suman can do (1/15th) of the work in one day (or 2/30th).

Working together, Mohan and Suman can do (3/30)+(2/30) = 5/30th of the work in one day. So they would require 30/5 or 6 days to complete the task.

Hope it helps you

Answer 2

Step-by-step explanation:

1 day work of mohan= 1/10

1 day work of suman= 1/15

So, together work time taken = 1/10+1/12

=11/60