# Aptitude - Simple Interest Online Quiz

Following quiz provides Multiple Choice Questions (MCQs) related to **Simple Interest**. You will have to read all the given answers and click over the correct answer. If you are not sure about the answer then you can check the answer using **Show Answer** button. You can use **Next Quiz** button to check new set of questions in the quiz.

Q 1 - How crunch simple interest will Rs 2000 win in year and a half at 6% for every annum?

### Answer : B

### Explanation

S.I = Rs. (2000*18/12*6/100) = Rs. 180.

Q 2 - Krait took a credit at basic simple interest at 6 % in the first years with an increment of 0.5 % in each consequent year. She paid Rs 3375 as simple interest following 4 years. What amount of advance did she take?

### Answer : A

### Explanation

Let the loan taken be rs. x. Then, X*6/100 *1+ x*6.5/100*1+ x*7/100*1 +x*7.5/100*1 = 3375 => (6+6.5+7+7.5)*x/100 = 3375 => x= (3375*100/27) = 12500.

Q 3 - In the event that the yearly rate of simple interest increments from 10% to 25/2 %, a man yearly pay increments by Rs 1250. The primary is:

### Answer : C

### Explanation

Let the principle be rs. x. Then, (x* 25/2*1/100*1)- (x*10/100*1) = 1250 => x/8 ?x/10 = 1250 => 5x- 4x= 50000 X= 50000. Hence, the principle is Rs. 50000.

Q 4 - A cash bank finds that because of a fall in the yearly rate of interest from 8% to 31/4% his yearly salary reduces by Rs 61.50. His capital is:

### Answer : C

### Explanation

Let the capital be RS. x. then (x*8/100*1) ?(x*31/4*1/100*1) = 123/2 => 2x/25-31x/400 = 123/2 => 32x-31x = 24600 => x= 24600 Hence, the capital is Rs. 24600.

Q 5 - The simple interest on a whole for a long time is two fifth of the entirety. The rate percent per P.a. is:

### Answer : B

### Explanation

Let the sum be Rs. x. Then, S.I = Rs.2x/5 Rate = (100*S.I)/ (p*t) = (100*2x/5* 1/x*1/5) % p.a = 8% p.a.

Q 6 - What would be the simple interest obtained on an amount of Rs 6535 at the rate of 10% after 6 years?

### Answer : B

### Explanation

Simple Interest = PTR/100 = 6535 * 6 * 10/100 = Rs 3921

Q 7 - The simple interest on a sum of money is 4/9 of the principal and the number of years is equal to the rate percent per annum. The rate per annum is

### Answer : B

### Explanation

We know, I = PTR/100 According to question, I = 4P/9 and r = t 4P/9 = P*r*r/100 Or, r2 = 400/9 Or, r = 20/3

Q 8 - If the annual ROI increases from 10% to 12^{1}⁄_{2}%, a man's yearly income increases by Rs. 1250. his principal (in Rs) is?

### Answer : B

### Explanation

Let the sum be z. Then, (z x^{25}⁄_{2}x^{1}⁄_{100}) - (^{z x 10 x 1}⁄_{100}) = 1250 = 25z - 20z = 250000

= 5z = 250000 z = 50000

Q 9 - A person invested in all Rs. 2600 at 4%, 6%, and 8% per annum simple interest. At the end of the year, he got the same interest in all the three cases. The money invested at 4% is?

### Answer : A

### Explanation

Let the parts be a,b and [2600 - (a + b)] then,^{a x 4 x 1}⁄_{100}) = (^{b x 6 x 1}⁄_{100}) = (^{[2600 - ( a + b)] x 8 x 1}⁄_{100}) =^{b}⁄_{a}=^{4}⁄_{6}=^{2}⁄_{3}or y =^{2a}⁄_{3}So,^{a x 4}⁄_{100}^{(7800 - 5a) x 8}⁄_{3}= 52a = (7800 x 8)

a =^{7800 x 8}⁄_{52}= 1200