Question

Arun takes 4 more days than Rana to complete a work. Yash is 20% more efficient than Rana and takes 1 less day Rana takes. Find the no. of days taken by all of them to complete twice this work together?​

Answer 1

Answer:

Efficiency of rana:yash

5:6

Taken day 6:5

Then Arun takes 6+4=10days

Total work=30

Twice work= 60/14 ans