Shaista completes a piece of work in 10 days, All completes the same work in 40 days, if they work together, the days required to complete the work will be _________

Shaista completes a piece of work in 10 days, All completes the same work in 40 days, if they work together, the days required to complete the work will be _________

Explanation

LCM of 1/10 + 1/40 = 1/8

Number of days to complete the total work = 8 days