Q1Moderate
A can complete a work in 14 days and B can complete the same work in 18 days. If they work together for 4 days, what fraction of the work will be left?
View answer & solution
Correct answer: D. 31/63
Quick explanation
D — 31/63. Combined rate = 1/14 + 1/18 = 8/63 per day; in 4 days = 32/63; remaining = 1 − 32/63 = 31/63.
