Question : Vijay is 10% more efficient than Vikas. If Vikas can complete a piece of work in 33 days, Vijay can complete the same work in how many days?
Option 1: 25
Option 2: 27
Option 3: 30
Option 4: 36
Correct Answer: 30
Solution : Let Vikas be 100% efficient. Then Vijay will be 110% efficient. Now, 100% efficient can do work in 33 days, 1% efficient will do work in $33 \times 100$ days. $\therefore$ 110% efficient can do work in $\frac{33 \times 100}{110}$ = 30 days Hence, the correct answer is 30.
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