Simple Interest

Study Material (PDF)
Self Assesment
Study Material (PDF)
Self Assesment

Click on each question to see answer & solution.

Question No: #11

In how many years will the interest on 1200 rupees be 64 rupees at the rate of 8% simple interest per annum?
Ans: `\frac{2}{3}` years
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Question No: #12

In how many years will a capital double at a simple interest rate of 6¼% per annum?
Ans: 16 years
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Question No: #13

Simple interest for `z` months of Rs. `y` at the rate of simple interest of `x`% per annum is Rs. _____.
Ans: `\frac{xyz}{1200}`
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Question No: #14

If the principal is Rs. `x`, amount is Rs. `3x`, and the rate of interest is `x`%, the time will be ___.

Question No: #15

What is the amount of Rs. `a` in `a` month at `a`% annual simple interest?

Question No: #16

If the interest on a capital for `x` years at the rate of simple interest `x`% per annum is Rs. `x`, then the capital is -
(a) Rs. `x`, (b) Rs. `100x`, (c) Rs. `100/x`, (d) Rs. `100/x^2`

Question No: #17

At what rate of simple interest per annum will a principal double in 16⅔ years?

Question No: #18

At what rate of simple interest per annum, interest of a sum of money, will be `\frac{2}{5}` of amount in 10 years?
Ans: 6`\frac{2}{3}`%
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Question No: #19

If the annual interest is 1/16 of the original, how much will be the interest on 690 rupees in 8 months?
Ans: Rs. 198.375
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Question No: #20

As the annual simple interest rate goes from 4% to 3`\frac{3}{4}`%, the annual income of a person is reduced by Rs.60. Find the person's capital.
Ans: 24,000/-
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