Kanti and Jiya together can finish a work in 3 days. If Jiya alone can finish the work in 6 days, then in how many days can Kanti alone finish the work?
Answer & explanation
Correct answer: option 2
Kanti + Jiya = 3 days,
Jiya = 6 days,
⇒ Kanti + Jiya = 2, (Efficiency)
⇒ Kanti + 1 = 2,
⇒ Kanti = 1,
⇒ Time required by Kanti to complete the work alone = \(\frac{6}{1}\) = 6 days. ..(\(\frac{Work}{Efficiency}\) = Time)