Question

A,B and C can do a piece of work in 8 days, 12days and 15 days respectively. How long will they take to finish it if they work together?​

Answer 1

Step-by-step explanation:

let the number of one worker be X

3x = 8 + 15 + 12= 35

3x=35/3 = 11days 2hours

Answer 2

Answer:

Lcm of 12,15 and 8 is 30

hence -they will take 30 days to finish it if they work together