[16] Sakshi can do a piece of work in 20 days. Tanya is 25% more efficient than Sakshi. The number of day

For Competitive Exams

Sakshi can do a piece of work in 20 days. Tanya is 25% more efficient than Sakshi. The number of days taken by Tanya to do the same piece of work is:

Explanation:

Ratio of times taken by Sakshi and Tanya = 125 : 100 = 5 : 4.

Suppose Tanya takes $ x $ days to do the work.

5 : 4 :: 20 : $ x $ $\Rightarrow x $ =$ \left(\dfrac{4 \times 20}{5} \right) $

$\Rightarrow x $ = 16 days.

Hence, Tanya takes 16 days to complete the work.

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