A is twice as fast as B. If A and B together can complete a piece of work in 8 days, in how many days can A alone complete it? MCQ with Answer and Explanation
A is twice as fast as B. If A and B together can complete a piece of work in 8 days, in how many days can A alone complete it?
A. 10 days
B. 12 days
C. 24 days
D. 16 days
Answer: Option B
Solution (By JKSSB Mock Tests)
Let efficiency of B = 1, then efficiency of A = 2. Combined efficiency = 3 units/day. Total work = 8 * 3 = 24 units. Time taken by A alone = 24 / 2 = 12 days.
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