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A does a job in 6 days, B in 12 days. Together they finish in:
A4 days
B3 days
C5 days
D8 days
Answer & Solution
Correct answer: A. 4 days
1. 1-day work: A = 1/6, B = 1/12. Total = 1/6 + 1/12 = 3/12 = 1/4.
2. Days to finish = 1/(1/4) = 4 days.
3. Hence 4 days.
_Source: UGC NET Paper 1 Study Book (ugc-net.com class notes) — Time and Work_