Question

If meena gives an Interest of Rs. 45 fir one year at 9% rate principal. What is the sum she has borrow.

Answer 1

Answer:

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

Solution:

This question can be solved by using the formula of simple interest.

Simple Interest = [Principal × Rate × Time] / 100

Let us assume principal to be P

So, Simple Interest = [Principal × Rate × Time] / 100

The Simple interest, time and rate per annum is given as Rs. 45, 1 years and 9% respectively.

On substituting the values given in the question, we get

⇒ 45 = [P × 9 × 1] / 100

⇒ P = (45 × 100) / 9 × 1

⇒ P = 500

So, Meena borrowed Rs. 500.

Answer 2

Question:  

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

Answer:

Step-by-step explanation:

Given:

Rate of Interest: 9% per annum

Interest: Rs 45

T = 1 year

A = P + 45          

Let this be (1)

R% = A-P/P×100

Inserting (1)

9 = P+45-P/P×100

9 = 4500/P

P = 4500/9

P = 500

Meena had borrowed a sum of 500 Rs.