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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 - An acquires Rs 800 at the rate of 12% for each annum simple interest and B obtains Rs 910 at the rate of 10% for every annum basic interest. In how long will their measures of obligations be equivalent?
Answer : C
Explanation
Let the required time be x years. Then, 800+800 *12/100*x= 910+910*10/100*x => (96x-91x) =110 => 5x= 110 => x=22.
Q 2 - On the off chance that the basic simple interest on a certain total of cash for 15 months at 15/2 % p.a. surpasses the basic simple interest on the same aggregate for 8 months at 25/2 p.a. by Rs 32.50. The entirety is:
Answer : C
Explanation
Let the sum be rs. x. Then, (x* 15/2 *1/100*15/12)- (x*25/2*1/100*8/12) = 65/2 => 3x/32 ?x/12 = 65/2 => 9x-8x=3120 =>x= 3120 ∴ Sum = 3120
Q 3 - Simple interest on a sure whole at a sure yearly rate of interest is 25/16 of the entirety. In the event that the number speaking to rate percent and time in years is equivalent, then rate percent per annum is:
Answer : D
Explanation
Let the sum be Rs. x, Rate = R% P.a., time = 25/2 years. S.I = Rs. 25x/16 R = 100*25x/16 *1/x* 1/R => R2=2500/16 = R= 25/2 Hence, Rate = 25/2%
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 - A man disperses Rs. 25300 among his three children A, B, C. In a manner that the measure of there at 10% simple interest for a long time, 3 years and 4 years will be equivalent an offer is:
Answer : C
Explanation
Let the parts of A, B, C be x, Y, z respectively. Then (x+ x*2*10/100)= (Y+ y*3*10/100) = (z+ z*4*10/100) => 6x/5 =13y/10 = 7z/5 =ℏ = 5ℏ/6, y = 10ℏ/13, z= 5ℏ/7 => x: y: z = 5ℏ /6:10ℏ/13 :5ℏ/7 = 1/6:2/13: 1/7 = 91: 84: 78 A's part = Rs. (25300*91/253) = Rs. 9100.
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 - At what rate percent per annum will the simple interest on a sum of money be 2⁄5 of the amount in 10 years?
Answer : A
Explanation
Let sum be z. Then, S.I. = (2z⁄5) Time = 10 Rate = (100 x 2z⁄z x 5 x 10) = 4%
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
Q 9 - An aggregate when figured at 12% S.I adds up to Rs. 2405 in 4 years. Discover the entirety.
Answer : A
Explanation
Let the entirety be Rs. x. at that point, S.I = Rs. (x*12/100*4) = rs. 12x/25 ∴amount = (x+12x/25) = Rs. 37x/25 ∴ 37x/25 = 2405 => x= (2405*25/37) = 1625. Subsequently, the aggregate is Rs. 1625.