Question

Worker A is thrice as efficient as worker
B. They can together finish a task in 18 days. How many days will A alone take to finish the work?

A B 3 1 Efficiency. When he works together 4 18 172 A alone take to finish work 72324 days.

A 24 days

B 42 days

C 12 days

D 48 days

Detailed Solution