Question

Raju, Ramu and Razi can do a piece of work in 20, 30 and 60 days respectively depending on their capacity of doing work. If Raju is assisted by Ramu and Razi on every third day, then in how Raju will complete the work

Answer 1

Answer:

If Raju is assisted by Ramu and Razi on every third day, then Raju will complete the work in 15 days.

Step-by-step explanation:

work done in a day by raju = 1/20

work done in a day by ramu = 1/30

work done in a day by razi = 1/60

if Raju is assisted by Ramu and Razi on every third day, then,

work done in 3 days = 3*1/20 + 1/30 + 1/60

= 3*3 / 3*20 + 2*1 / 2*30 + 1/60

= 9/60 + 2/60 + 1/60

= 9+2+1 / 60

= 12/60

= 1/5

now if 1/5 work is done in 3 days,

1 full work would be done in = (3*1) / (1/5)

= 3*5

= 15 days

Answer 2

Answer:

15

Step-by-step explanation:

15