- Aptitude Test Preparation
- Aptitude - Home
- Aptitude - Overview
- Quantitative Aptitude
- Aptitude Useful Resources
- Aptitude - Questions & Answers
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 - At which aggregate the simple interest at the rate of 15/4 for each annum will be Rs 210 in 7/3 years?
Answer : B
Explanation
Sum = Rs. (100*s.I/R*T) = Rs. (100*210)/(15/4*7/3) = Rs. (100*210*12/105) =2400 Rs.
Q 2 - Rs 2000 adds up to Rs 2600 in 5 years at basic interest. In the event that the loan costs were expanded by 3%, it would add up to what amount?
Answer : A
Explanation
Sum = Rs.2000, S.I = Rs. 600, Time = 5years. ∴ Rate = (100*S.I/sum*time) = (100*600/2000*5) = 6% p.a. New, sum = Rs. 2000, Rate = 9% P.a., Time = 5 years. S.I = Rs. (2000*9*5/100) = Rs. 900 Amount = Rs. (2000+900) = Rs. 2900
Q 3 - x, y, z are three entireties of cash such that y is the simple interest on x and z is the basic on y for the same time and rate. Which of the accompanying is right?
Answer : D
Explanation
y= S.I. On Rs. x = Rs. (x*R*T/100); z=S.I on Rs. y = Rs. (y*r*t/100) ∴ y/z = x/y => y2= zx.
Q 4 - A commission operators permits a refund of 2% to a financial specialist while the organization pays on interest of 15% on the speculation. What rate of premium does the financial specialist really acquire on his venture?
Answer : D
Explanation
Instead of Rs.100, the investor invests = Rs. (100-2) = Rs. 98 Instead of Rs. 98 = Rs. 15 Interest on Rs. 100= Rs. (15/98*100) = Rs. 750/49
Q 5 - Find the interest on Rs 5000 at 10% for 5 years.
Answer : A
Explanation
Here, P = Rs 5000, R = 10% and T = 5 years. I = (5000*10*5)/100 = 2500
Q 6 - Amit invests a certain sum at 10% per annum simple interest. In how many years will it become 5 times?
Answer : C
Explanation
We know, R = 100(n - 1)/t Or, t = 100(n - 1)/R = 100(5 - 1)/10 = 100*4/10 = 40 years
Q 7 - In how much time would the simple interest on a certain sum be 0.125 times the principal at 10% per annum?
Answer : C
Explanation
Let sum be z. Then, S.I. = 0.125z = 1z⁄8 Rate = 10 Time = (100 x z⁄z x 8 x 10) = 5⁄4 years = 11⁄4
Q 8 - The difference between the simple interest received from two different sources on Rs. 1500 for 3 years is Rs. 13.50. The difference between their rate of interest is?
Answer : B
Explanation
(1500 x R1 x 3⁄100) - (1500 x R2 x 3⁄100) = 13.50 = 4500 (R1 - R2) = 1350 = R1 - R2 = 1350⁄4500 = 0.3%
Q 9 - Divide Rs. 2379 into 3 parts so that their amounts after 2,3 and 4 years respectively may be equal, the rate of interest being 5% per annum at simple interest. The first part is?
Answer : A
Explanation
Let the parts be a,b and [2379 - (a + b)] a + (a x 25⁄100) = b + (b x 35⁄100) = c + (c x 45⁄100) = 11a⁄10 = 23b⁄20 = 6c⁄5 = k a = 10k⁄11
b = 20k⁄23
c = 5k⁄6 But, a + b + c = 2379 10k⁄11 + 20k⁄23 + 5k⁄6 = 2379 1380k + 1320k + 1265k = 2379 x 11 x 23 x 6 k = 2379 x 11 x 23 x 6⁄3965 = 3 x 11 x 23 x 6⁄5 a = 828