A, B and C can do a work in 5 days,6 days and 10 days, respectively. Working together, in how many days will they finish the same work?
Answer & explanation
Correct answer: option 1
A = 5 days, B = 6 days, c = 10 days,
⇒ A + B+ C can do the work in = \(\frac{30}{6+5+3}\) = \(\frac{30}{14}\) = \( {2 }_{ 7}^{1 } \) days. ..(\(\frac{Work}{Efficiency}\) = Time)