Question

A can finish a work in 24 days and B can do the same work in one third the time taken by A. Then, working together, what part of the same work can they finish in a day?

• A. 1/6
• B. 1/9
• C. 2/5
• D. 2/7
• E. None of these

Answer 1

The correct option is A

1/6

A’s 1 day’s work = $\frac{1}{24}$

B’s 1 day’s work = $\frac{1}{8}$

$\therefore$ (A+B)’s 1 day’s work = $(\frac{1}{24}+\frac{1}{8})=\frac{1}{6}$

So, both together will finish the work in 6 days.