Sakshi can do a piece of work in 20 days. Tanya is 25% more efficient than Saksh

Question

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:

Options:

A . 15

B . 16

C . 18

D . 25

Answer: Option B

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 \(\Rightarrow\left(\frac{4\times20}{5}\right)\)

x = 16 days.

Hence, Tanya takes 16 days to complete the work.

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