A can complete a work in 8 days and B can complete the same work in 11 days. How long will they take, if both work together?
Answer & explanation
Correct answer: option 4
A = 8 days, B = 11 days,
⇒ Time required for A + B to complete the total work = \(\frac{88}{11 + 8}\) = \(\frac{88}{19}\) =\( { 4}_{ 19}^{ 12} \) days.