A can complete a task in 6 days, while B can complete the same task in 12 days. How many days will they take to complete the same task if they work together?
Answer & explanation
Correct answer: option 2
A = 6 days, B = 12 days,
⇒ Time required by A + B to complete the work = \(\frac{12}{2+1}\) = \(\frac{12}{3}\) = 4 days, ..(\(\frac{Work}{Efficiency}\) = Time)