A sum at a simple interest of 8% p.a. becomes $$\frac{7}{5}$$ of itself in how many years?

A. 5

B. $$2\frac{1}{2}$$

C. $$3\frac{1}{2}$$

D. 2

Answer: Option A

Solution(By Examveda Team)

$$\eqalign{ & 2P = \frac{{5P \times 8 \times T}}{{10}} \cr & T = 5{\text{ years}} \cr} $$