Suman and Lata working together can complete a task in 8 days. If Lata can complete the same task in 12 days, then how many days will Suman take to complete the same task?
Answer & explanation
Correct answer: option 4
Suman + Lata = 8 days,
Lata = 12 days,
⇒ Suman + Lata = 3, (Efficiency)
⇒ Suman + 2 = 3,
⇒ Suman = 1,
⇒ Time required by Suman to complete the work alone = \(\frac{24}{1}\) = 24 days, ..(\(\frac{Work}{Efficiency}\) = Time)