ram Ek kam ko 10 din me krta hai aur Mohan 15 din krta hai. Dono milkr usi kam ko Kitne din me krege

1/10+1/15=1/6
Both complete work in 6 days

Kesa keya solve

Kesa slove keya

In terms of efficency
L.C.M of 10 & 15 is 30. So, 30 units of work need to be done.
eff. of ram is 3units/day & eff. of mohan is 2units/day.
together their eff. is 5 units/day.
total units of work is 30 units. It will take 30/5 = 6 days to complete

Ram-1/10
Mohan-1/15
Both will complete the work in 1/10+1/15 = 1/6
Thus, Ram and Mohan will complete the work in 6 days.