Question

The simple interest at $x\%$ for $x$ years will be Rs. $x$ on a sum of _________.

• A. Rs. $x$
• B. Rs. $100x$
• C. Rs. $\left(\frac{100}{x}\right)$
• D. Rs. $\left(\frac{100}{x^2}\right)$

Answer 1

Answer: (C)

Rs. $\left(\frac{100}{x}\right)$

Let principal sum be $y$

Simple Interest $=$ Principal $\times$ Rate $\times$ Time

$\therefore x=y\times \frac{x}{100}\times x$

$\therefore y=$ Rs. $\frac{100}{x}$