AFCAT MATHEMATICS (SIMPLE INTEREST) QUIZ-1

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Question 1:

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 2:

At certain rate of interest Rs. 5,400 becomes Rs. 5950 in 6 years. If rate of interest increases by $5 \%$. Find the new Amount.

Question 3:

Certain sum amount to Rs. 2,960 in 4 years at $12 \%$ per anuum rate of interest. If rate of interest reduces by $25 \%$, in how many years same sum would be Rs. 4,000 ?

Question 4:

In what time will Rs. 8000 , at $3 \%$ per annum, produce the same interest as Rs. 6000 does in 5 years at $4 \%$ simple interest is?

Question 5:

Chameli lent Rs.1,200 and Rs.800 at $10 \%$ and $8 \%$ rate of simple interest to Shila and Radha respectively. If she got Rs.2,208 as interest on total money lent then for how many year did she lent money?

Question 6:

At what rate of interest will a sum of Rs 4,500 amount to Rs 6,525 at simple interest for 5 years?

Question 7:

In how much time will the simple interest on a certain sum of money be $\frac{6 }{5}$ times of the sum at $20 \%$ per annum?

Question 8:

A sum of money becomes 4 times at simple interest in 10 years. What is the rate of interest?

Question 9:

A person invests money in three diffrent schemes for 4 years, 10 years and 15 years at $15 \%, 9 \%$ and $12 \%$ simple interest respestively. At the completion of each scheme, he gets the same interest. Find the ratio of his investments?

Question 10:

The compound interest on a certain sum for 2 years is Rs. 105 and simple interest is Rs. 100. The rate of interest per annum and the sum are :