Simple Interest and Compound Interest-Test 1

Out of a sum of Rs 850, a part was lent at 6% SI and the other at 12% SI. If the
interest on the first part after 2 years is equal to the interest on the second part after
4 years, then the second sum is

A sum of Rs. 550 was taken as a loan. This is to be paid back in two equal installments. If the rate of interest be 20% compounded annually, then the value of each installment is :

A certain sum of money amounts to Rs.1300 in 2 years and to Rs. 1525 in 3.5 years. Find the sum and the rate of interest.

The simple interest on a certain sum of money for 3 years at 8% per annum is half
the compound interest on Rs. 4000 for 2 years at 10% per annum. The sum placed
on simple interest is:

A Woman took a loan of Rs. 15,000 to purchase a mobile. She promised to make
the payment after three years. The company charges CI at 20% per annum for the same.
But, suddenly the company announces the rate of interest as 25% per annum for the
last one year of the loan period. What extra amount she has to pay due to the announcement of new rate of interest?

The ratio of the amount for two years under compound interest annually and for one
year under simple interest is 6:5. When the rate of interest is same, then the value of
rate of interest is:

An automobile financier claims to be lending money at simple interest, but he
includes the interest every six months for calculating the principal. If he is charging
an interest of 10%, the effective rate of interest becomes:

A person borrows Rs. 3000 for 2 years at 5% p.a. simple interest. He immediately lends it to another person at 6 ¼ %p.a for 2 years. Find his gain in the transaction per year.

If the difference between CI and SI earned on a certain amount at 20% pa at the end of
3 years is Rs.640, find out the principal.

If the simple interest on a certain sum of money is 4/25 of the sum and the rate per
cent equals the number years, then the rate of interest per annum is:

A sum of Rs. 10,000 is borrowed at 8% per annum compounded annually. If the
amount is to be paid in three equal installments, the annual installment will be

A sum was put at simple interest at a certain rate for 5 years. Had it been put at
2% higher rate, it would have fetched Rs. 450 more. Find the sum?

Stephen borrowed some money at 6% for the first 4 years, 8% for the next 6 years
and 11% for the period beyond 2 years. If the total interest paid by him at the end of
eleven years is Rs 5640, how much money did he borrow?

A financier lend money at simple interest, but he includes the interest every six
months for calculating the principal. If he is changing an interest of 10%, the effective
rate of interest becomes?

Ragav purchases a coat for Rs.2400 cash or for Rs.1000 cash down payments and two
monthly installments of Rs.800 each. Find the rate of interest.

The difference between simple interest and compound interest on Rs. 1200 for one year
at 10% per annum reckoned half-yearly is:

A borrows 5000 at simple interest. At the end of 3 years, he again borrows 3000 and
finally pays 2340 as interest after 6 years from the time he made the first borrowing.
Find the rate of interest per annum.

Arav fixes the rate of interest 5% per annum for first 3 years and for the next 4 years 6 percent per annum and for the period beyond 7 years, 7 percent per annum. If Mr. Kumar lent out Rs.2500 for 11 years, find the total interest earned by him?

A certain sum of money amounts to rupees 2900 at 4% per annum in 4 years. In how
many years will it amount to rupees 5000 at the same rate?

Rs.100 doubled in 5 years when compounded annually. How many more
years will it take to get another Rs.200 compound interest?

Mosses invested Rs. 20,000 in a scheme at simple interest @ 15% per annum. After
three years he withdrew the principal amount plus interest and invested the entire amount in another scheme for two years, which earned him compound interest @ 12% per annum. What would be the total interest earned by Mosses at the end of 5
years?

A certain sum is invested for certain time. It amounts to Rs. 600 at 10% per annum.
But when invested at 5% per annum, it amounts to Rs. 400. Find the time.

A lent Rs. 8000 to B for 2 years and Rs 6000 to C for 4 years on simple interest at
the same rate of interest and received Rs 1840 in all from both of them as interest.
The rate of interest per annum is

A Man lends Rs. 1540 for five years and Rs. 1800 for four years. If he gets Rs. 1788
as interest on both amounts, what is the rate of interest ?

If a sum of Rs.8000 lended for 20% per annum at compound interest then the sum
of the amount will be Rs.13824 in