Sangeeta2018 wrote:

It takes 10 type A machines 3 days to complete a task when they are operated 12 hours a day. How long will it take 8 Type B machines to complete the same task when they are operated 8 hours a day?

1. Type B machines are 20% less efficient than Type A machines

2.Type B machines take 25% longer to complete the same task than Type A machines

The number of Type B machines and hours per day is given. To calculate total number of days required, we need a relationship between efficiency of Type A and Type B machine.

Statement 1: Directly Provides the relationship between the efficiency of Type A & Type B machines. Hence

SufficientStatement 2: Again relationship between efficiency of Type A and Type B machine is provided. Hence

SufficientOption

D