A is twice as efficient as B and B is twice as efficient as C. If A and B together can complete a work in 4 days, then C alone can complete it in: MCQ with Answer and Explanation
A is twice as efficient as B and B is twice as efficient as C. If A and B together can complete a work in 4 days, then C alone can complete it in:
A. 24 days
B. 32 days
C. 12 days
D. 16 days
Answer: Option A
Solution (By JKSSB Mock Tests)
Let efficiency of C = 1. Then efficiency of B = 2 and efficiency of A = 4. Combined efficiency of A and B = 4 + 2 = 6. Total work = 4 * 6 = 24 units. Time taken by C alone = 24 / 1 = 24 days.
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