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?
Choose the correct choice from the following answers:	A) 65 days	B) 16 days	C) 15 days	D) 19 days	E) 20 days
Ratio of times taken by Sakshi and Tanys = 125:100 = 5:4   Suppose Tanya takes x days to do the work.   5:4 :: 20:x =&gt; x= 16 days.   Hence, Tanya takes 16 days to complete the work.   Answer: 16 days
<result>B</result>
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?