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Question 1:

A sum of money at compound Interest amounts to $3 \sqrt{3}$ times itself in 5 years. In how many years will it be 27 times itself.

Question 2:

A man gave 50% of his saving of 42100 to his two sons A and B if 15 and 13 years of age respectively the divided it in such a way that each of his son, when they attain the age of 18 years, would receive the same amount at 5% compound interest per annum. The share of B was:(in Rs.)

Question 3:

On a certain sum of money, the simple interest for 2 years is Rs. 200 at the rate of $7 \%$ per annum. Find the difference in CI and SI.

Question 4:

The compound interest on a certain sum for 2 years at $15 \%$ p.a. is ₹ 7,282 , interest being compounded 8 -monthly. What will be the amount of the same sum at the same rate for the same duration, when the interest is compounded yearly?

Question 5:

What is the rate of interest (in %.) if simple interest earned on a certain sum for the $3^{\text {rd }}$ year is Rs. 3200 and compound Interest earned in 2 years is Rs. 6912 ?

Question 6:

What will be the compound Interest on a sum of Rs. 93,750 for 2 years at $12 \%$. P.a. If the interest is Compounded 8-monthly?

Question 7:

The sum for 2 years gives a compound interest of $3187.5$ at the rate of $12 \frac{1}{2} \%$ per annum. Then Find the sum?

Question 8:

A man lent Rs. $\mathbf{4 5 0 0}$ at $30 \%$ compound interest per annum for 3 years. What is the difference between the interest earned by the man in the 2 nd year only and the interest earned by the man in the 3rd year only?

Question 9:

A sum of money is paid back in two annual installments of Rs 24,255 each, allowing $5 \%$ compound Interest annually. The sum borrowed was

Question 10:

Sumit earned ₹ 10,692 as simple interest on ₹ 29,700 at a certain rate of interest for 3 years. His friend Anil invested ₹ 12,500 for 2 years at the same rate of interest but on compound interest compounded annually. How much did Anil earn as interest?