The ratio of efficiencies of A, B and C is 2 : 5 : 3. Working together they can finish the work in 16 days. How much time will it take for B and C to complete the same work?
Answer & explanation
Correct answer: option 1
Total work = efficiency x number of days
= 10 x 16 = 160
Time taken by B and C to complete the same work = \(\frac{Total\; work}{Efficiency}\)
= \(\frac{160}{8}\) = 20 days