Working together A, B and C can complete a piece of work in 3 days. A completes the same work in 24 days and B completes it in 6 days. How many days will C alone take to complete the same work?
Answer & explanation
Correct answer: option 2
A + B + C = 3 days,
A = 24 days,
B = 6 days,
⇒ A + B + C = 8, (Efficiency)
⇒ 1 + 4 + C = 8,
⇒ C = 8 - 5
⇒ C = 3,
⇒ Time required by C to complete the work alone = \(\frac{24}{3}\) = 8 days, ..(\(\frac{Work}{Efficiency}\) = Time)