Question

Mary and John can do a piece of work in 24 days; John and Vino in 30 days; Vino and Mary in 40 days. If Mary, John and Vino work together they will complete the work in :

 

a) 10 days 
b) 20 days 
c) 17 days 
d) 15 days

 

​

Answer 1

Answer:20days

Step-by-step explanation:

Solve using LCM method