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# Simple & Compound Interest || 12.06.2021

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Question 1

A certain sum of money triples itself in 5 years at simple interest. In how many years it will be five times?

Question 2

If the total simple interest on a sum of ₹1,400 for 4 years at rate of interest x% p.a. and on the same sum for two years at the same rate is ₹672, then the value of x is:

Question 3

If in 3 years at simple interest the principal increases by 18%, what will be the compound interest (in Rs) earned on Rs. 25,000 in 3 years at the same rate?

Question 4

A sum of money amounts to Rs.9800 after 5 years and Rs.12005 after 8 years at the same rate of simple interest. The rate of interest per annum is:

Question 5

What is the compound interest on a sum of Rs. 10,000 at 14% p.a. for years where the interest is compounded yearly?

Question 6

Aayush took a loan for his personal work at a rate of 13.10% per annum simple interest. After 4 years he had to pay Rs. 8500 as interest on the loan. Calculate the amount of principle he must have borrowed?

Question 7

A person borrowed Rs. 32,000 at a yearly 9% simple interest and deposited the same amount in a bank at a yearly compound interest of 10%. What is the gain in rupees at the end of 3 years?

Question 8

What is the simple interest (in Rs) on a principle sum of Rs 1400 for 3 years at the rate of 10% per annum?

Question 9

What is the rate of interest (in %) if the simple interest earned on a certain sum in 3 years is Rs 6,000 and compound interest earned in 2 years is Rs 4,160?

Question 10

₹20000 is invested on compound interest (compounded half yearly) at the rate of 20% per annum. What will be the interest earned in two years?
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