A can do a certain work in 12 days. B is 60% more efficient then A. How many day

MCQ Practice

A can do a certain work in 12 days. B is 60% more efficient then A. How many days will B and A together take to do the same job?

Subject: MathematicsTopic: Time And Work

frac8013textdays

frac7013textdays

frac7513textdays

frac6013textdays

Correct Answer: D