Question

A works 3 times as fast as B If b completes a work in 60 days how many days A and B together complete ​

Answer 1

Answer:

15 days

Step-by-step explanation:

Efficiency of B= 1

Efficiency of A= 3

Total efficiency = 1+3=4

Total Work = 60

Time taken = Work/ efficiency= 60/4= 15

It is a shortcut way to solve these type of questions of mental ability.