question_answer 1)

If Meena gives an interest of ` 45 for one year at 9% rate p.a. What is the sum she has borrowed?

Answer:

                                I = ` 45                                 R = 9% p.a.                 Let the sum be ` P.                                 \[\text{I = }\frac{\text{PR}}{\text{100}}\]                 \[\Rightarrow \]                               \[45=\frac{P\times 9}{100}\]                 \[\Rightarrow \]                               \[P=\frac{45\times 100}{9}=500\]                 Hence, the sum she borrowed is ` 500.