Maths · Arithmetic and Geometric progressions
Sakshi can do a piece of work in 20 days. Tanya is more efficient than Sakshi. T
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:
- A. 15
- B. 16
- C. 18
- D. 25
Step-by-step solution
Sakshi's work rate = 1/20 per day. Tanya is 25% more efficient, so her work rate = 1.25 * (1/20) = 1.25/20 = 1/16 per day. Thus, Tanya takes 16 days.
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