Question

If meena gives an interest of Rs 45 for one year at 9% rate p.a. what is the sum she has borrowed?

Answer 1

s.i.=p×r×t/100
45=p×9×1/100
RS 500(principle)

Answer 2

GIVEN => Simple interest = rs 45

=> Rate of interest = 9 % pa

=> Time = 1 year


Solution => SI = $\frac{P \: × \: R \: × \: T}{100}$

=> 45 = $\frac{P \: × \: 9 \: × \: 1}{100}$

=> P = $\frac{45×100}{9}$

=> P = $\frac{4500}{9}$

=> P = 500


$\therefore{}$ Principal = Rs 500