If 10 people can do a job in 20 days, how many days will it take 20 people with twice the efficiency to do the same job?
Q1. If 10 people can do a job in 20 days, how many days will it take 20 people with twice the efficiency to do the same job?
Answer: 5 days
Explanation: The correct value is 5 days. Apply the formula or arithmetic step shown in the question and