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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 - A man puts cash in three unique plans for a long time, 10 years and 12years at 10%, 12% and 15% simple premium, separately. At the completion of every plan he gets the same interest. The proportion of his speculations is:
Answer : D
Explanation
Let the required ratio be x: 1: y. Then, S.I on Rs. x for 6 years at 10 % p.a. = S.I on Re 1 for 10 years at 12%p.a. X*10/100*6 = 1*12/100*10 => x= 120/60= 2 S.I. on Rs.1 for 10 years at 12% p.a. = S.I. on Rs. y for 12 years at 15% p.a. ∴ (1*12/100*10) = (y* 15/100*12) => y = 120/180= 2/3 Required ratio = 2:1:2/3 = 6:3:2
Q 2 - The total of cash that will give Re 1 as basic premium for each at the rate of 5% for every annum is:
Answer : C
Explanation
Annual interest = Rs. 365, Rate = 5% p.a. Sum = (100*S.I/R*T) = Rs. (100*365/5*1) = Rs. 7300.
Q 3 - The simple interest at x% p.a. for x years will be Rs x on an aggregate of:
Answer : C
Explanation
Let the sum be Rs. P. then, P = 100*S.I /Rate * time = (100*x/x*x) = Rs. 100/x
Q 4 - An aggregate of Rs 5000 was loaned mostly at 6% and incompletely at 9% basic interest. On the off chance that the aggregate yearly premium be Rs 390, the proportion in which the cash was loaned at given rates is:
Answer : C
Explanation
Let the money invested at the two rates be rs. x and Rs. (5000-x) Then, (x*6/100*1) + (5000-x) *9/100*1 = 390 => 3x/50 + 9(5000-x)/100 = 390 => 6x+45000-9x = 39000 => 3x= 6000 => x= 2000. Required ratio = 2000:3000= 2:3
Q 5 - Anand took some advance at 12% P.a. simple interest and paid back Rs. 17584 toward the end of 3 years 4 months. What amount of cash did he acquire?
Answer : C
Explanation
Let the money borrowed be Rs. x. Then, x+x* 12/100* 10/3 = 17584 => (x+2x/5) = 17584 => 7x/5 = 17584 => x= (17584*5/7) = 12560. Hence, the money borrowed is Rs. 12560.
Q 6 - A sum of Rs 1500 is lent out in two parts in such a way that the simple interest on one part at 10% per annum for 5 years is equal to that on another pert at 12.5% per annum for 4 years. The sum lent out at 12.5% is:
Answer : C
Explanation
Let the sum lent out at 12.5% be x Sum lent out at 10% = 1500 - x Now, (1500-x)*10*5/100 = x * 12.5*4/100 Or, 50(1500-x) = 50x Or, 2x = 1500 Or, x = 750
Q 7 - A sum of money amounts to RS. 9800 after 5 years and to 12005 after a further period of 8 years at the same rate of simple interest. The rate of interest per annum is?
Answer : A
Explanation
S.I. for 3 year = Rs. (12005 - 9800) = 2205 S.I. for 5 years = Rs. (2205 x 5⁄3) = 3675 Therefore Principal = (9800 - 3675) = 6125 Hence, Rate = (100 x 3675⁄6125 x 5) = 12%
Q 8 - A money lender finds that due to fall in the annual rate of interest from 8% to 73⁄4%, his yearly income diminishes by Rs. 61.50. His capital is?
Answer : A
Explanation
Let the capital be Rs z then, z x 8 x 1⁄100 - z x 31 x⁄41⁄100 = 61.50 32z - 31z = 6150 x 4 z = 24600
Answer : A
Explanation
Here P = 5600 Rs.R= 20/3% p.a. also, T = 9/12 = 3/4 year S.I = (P*R*T)/100 = (5600*20/3*3/4*1/100) = Rs. 280
