Antony and Vikash together can complete a piece of work in 20 days and Vikash alone can complete it in 25 days. In how many days can Antony alone complete the same work?
Answer & explanation
Correct answer: option 3
Antony(A) + Vikash(V) = 20 days,
Vikash(V) = 25 days,
⇒ A + V = 5, (Efficiency)
⇒ A + 4 = 5,
⇒ A = 1,
⇒ Time requires by Antony to complete the total work = \(\frac{100}{1}\) = 100 days, ..(\(\frac{Work}{Efficiency}\) = Time)