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Question 1:

At simple interest at an annual interest rate of Rs. 4,300 increases in 2 years to Rs. 4,644. So what will be the rate percentage.

Question 2:

The simple interest on a certain sum of money at the rate of 7.5% p.a. for 8 years is ₹ 4,080. At what rate of interest can the same amount of interest be received on the same sum for 5 years?

Question 3:

A person borrows a sum of ₹ $50,000$ for 3 years at $4 \%$ p.a. simple interest. He immediately lends it to another person at $6 \frac{1}{4} \%$ p.a. simple interest for 3 years. Find his gain in the first year.

Question 4:

Mr. Chandan lends $\frac{1}{3}$ of his income at $7 \%$, $\frac{2}{5}$ at $10 \%$ and rest of his income at $12 \%$ interest. After two years his interest is Rs. 1430, then find the initial amount that he had lend.

Question 5:

What will be the ratio of the simple interest earned on a certain sum at the same rate percentage p.a. for 4 years and that for 6 years?

Question 6:

A newly opened bank offered interest rate of 15%. Anmol had an account in SBI which provided him an interest rate of 5%. If Anmol opens his account in the new bank and makes an investment of rupees 30000 for 6 year, how much additional profit will he makes as compared to SBI account ?

Question 7:

How long, will it take for a sum of money to grow from Rs 1250 to Rs 10,000 , if it is invested at $12.5 \%$ p.a simple interest?

Question 8:

The amount obtained by investing a certain sum at $r \%$ p.a. for 4 years at simple interest is equal to the simple interest on the same sum at the same rate for 14 years. What is the value of $r$ ?

Question 9:

A certain sum on simple interest becomes ₹ 49,600 in 3 years and ₹ 56,000 in 5 years. If the rate of interest had been 2% more, then in how many years would the sum have doubled?

Question 10:

On what sum of money can one earn ₹ 2,400 as simple interest at the rate of 8% per annum in 4 years?