alleryIf A finishes a job in 12 days and B in 6 days, together:
A9 days
B3 days
C6 days
D4 days
Answer & Solution
Correct answer: D. 4 days
1. Rates: 1/12 + 1/6 = 3/12 = 1/4. 2. Time = 4 days.
_Source: 501-GMAT-Questions Section 4 / Manhattan Quant Bank_
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