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### Question 1

Simple interest on a certain sum of money is $1/2$ of the sum for 20 years. What is the rate of interest?

### Question 2

The interest on Rs. 1000 @7% for a certain number of days starting from Jan 1, 2001 is Rs. 14. How many days?

### Question 3

The interest on a certain principal sum is 4/81 times the sum. What is R, the rate of interest, if the time is R years?

### Question 4

The interest on Rs. 13000 @7% for a certain number of days starting from Jan 1, 1601 is Rs. 182. How many days?

### Question 5

An amount of Rs. 2143 is split into two parts. The first part is invested @7% for 2 years, and the second @2% for 7 years. What is the ratio of the first part is to the second part if they yield the same amount of simple interest?

**A**

1.

**B**

$1{1/14}$.

**C**

${13/14}$.

**D**

$1{1/7}$.

**Soln.**

**Ans: a**

Let the amounts be x and y. We have x × r_{1} × t_{1} = y × r_{2} × t_{2}. We can see that x : y is same as r_{2}t_{2} : r_{1}t_{1}. The ratio is (2 × 7) : (7 × 2) = 14 : 14, or same as 1. *Please note that the answer is independent of the value of the total amount.*

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This Blog Post/Article "Simple Interest Quiz Set 013" by Parveen (Hoven) is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

Updated on 2019-08-18.