Question

Kishore can complete a work in 10 days, Nathan completes the same work in 15 days, How many days it will take if both work
together?
O 8 days
O 9 days
O 6 days
5 days​

Answer 1

Answer:

5 days.................

Answer 2

Let us take the total work to be 30 units ( L.C.M of 10 , 15 )

Given , Kishore can complete a work in 10 days

           i.e., 30 units of work in 10 days 

 ⇒     3 units of work per day by kishore.  

Also , Nathan completes the same work in 15 days.    

             i.e., 30 units in 15 days.

     ⇒     2 units of work by Nathan.

When both of them work together work done by them per day = ( 3 + 2 )

                           = 5 units / day.

so no. of days required now  = ( Total work  / work done per day )

                  ⇒ Days  = ( 30 / 5 ) = 6 days.

∴ Therefore both of them together takes 6 days to complete the same work.

Hope this helps you ✌️✌️☘️☘️.