A can finish the work in 16 days, and B can do the same work in 12 days. B worked for 8 days and left the job. In how many days, A alone finish the remaining work?
Show answer & explanation
Correct answer: A
Explanation
Given:
A completes the work in 16 days
B completes the work in 12 days
B worked for 8 days
B's daily rate = 1/12
Work done in 8 days = 8 × 1/12 = 2/3
Remaining work = 1 − 2/3 = 1/3
A's daily rate = 1/16
Time = (1/3) ÷ (1/16) = 5⅓ days
1/3 day = 8 hours
5 days 8 hours