Exams › SSC CGL (Prelims) › General

X and Y can complete a task in 15 days together. X is 50% more efficient than Y. What percentage of the work is done by X alone?

1. 50%
2. 55%
3. 60%
4. 65%

Correct answer: 60%

Solution

If Y's efficiency is 2 units, then X's efficiency is 3 units because X is 50% more efficient. So together they work in the ratio 3:2, and X's share of the work is 3/(3+2) = 3/5 = 60%.

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