Professor

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:

- 16
- 15
- Cannot be determined
- None of the above

Asked by Monis Rasool on 13th June 2015 in Maths.

1 Answers

Professor

**Answer: (1) 16 days
Explanation:-**

Sakshi can do a piece of work = 20 days

Tanya is 25% more efficiency than Sakshi.

Then, the ratio of times taken by Skshi and Tanya = 125: 100 = 5: 4

Let be the Tanya takes X days to do the work.

Then, 5: 4 = 20/X

X = 4 X 20/5

X = 16 days.

Hence, the answer is (1) 16 days.

Answered by Anurag Mishra on 13th June 2015..