Question

A can do a work in 8 days, b can do a work in 7 days, c can do a work in 6 days. A works on the first day, b works on the second day and c on the third day respectively that is they work on alternate days. When will they finish the work.(which day will they finish the work)

Answer 1

Answer:

the answer is A

Step-by-step explanation:

Answer 2

Answer:

Step-by-step explanation:

A------- 8

B------- 7

C-------- 6

LCM = 168

A's 1day work =21

B's 1day work=24

C's 1day work= 28

for 3 day they complete 73 work

for next 3 day they complete 73 work

totally they complete 146 work

the remaining 22 work will be completed in 1 1/24 days

so the total work is completed in 7 1/24 days