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

It is given that,

Rate (R) = 9 % p.a.

Time (T) = 1 years

S.I = Rs 45

We know that,

Simple interest (S.I) =

Therefore,

45 =

So, P =

= Rs 500

Hence,

She borrowed Rs 500