S alone can complete 3/4 part of a work in 18 days. R is 3 times as efficient as S. In how many days will R alone complete the same total work?
Show answer & explanation
Correct answer: C
Explanation
Time taken by S to complete the entire work = 18 × 4 ÷ 3 = 24 days
Time taken by R = 24 ÷ 3 = 8 days