Question

Ravi can do a piece of work in 30 days while prakash can do it in 40 days. in how many days will they finish it together?

Answer 1

in 10 days they will

Answer 2

Answer:

17 1/7 days

Step-by-step explanation:

both ravi and prakash working days are given

so,1/30+1/40=40+30/1200=7/120

so,7/120 days,in mixed fraction the answer is 17 1/7 days