R is 33.33 percent more efficient than S. S alone can finish a work in 24 days. In how many days will R alone finish the same work?
Show answer & explanation
Correct answer: B
Explanation
Given:
R is 33.33% more efficient than S.
S = 24 days
R's efficiency = S's efficiency × (1 + 1/3) = 4/3
R's time = 24 × (3/4) = 18 days