Aptitude - Simple Interest Online Quiz


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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.

Questions and Answers

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

A - Rs 120

B - Rs 180

C - Rs 216

D - Rs 240

Answer : B

Explanation

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

Q 2 - On the off chance that the basic simple interest for a long time be equivalent to 30% of the principal, it will be equivalent to the vital after.

A - 10 years

B - 20 years

C - 22 years

D - 30 years

Answer : B

Explanation

Let the principle be Rs.x and the rate be R% p.a.  Then,
X*R/100*6 = 30/100*x = R= 5
Let the required time be t years.
X*5/100*t = x => t =100/5 = 20 years.

Q 3 - A farmer acquired Rs 3600 at 15% for every annum. Toward the end of 4 years he cleared his record by paying Rs 4000 and a goat. The expense of the goat is:

A - Rs 1000

B - Rs 1200

C - Rs 1550

D - Rs 1760

Answer : D

Explanation

Amount after 4 year = Rs. 3600+Rs. (3600*15/100* 4) = Rs.3600+(3600*15/100*4)
= cost of goat = Rs. (5760-4000) = 1760

Q 4 - What yearly installment will release an obligation of Rs 580 due in 5 years at 8% p.a.?

A - Rs 166.40

B - Rs 65.60

C - Rs 100

D - Rs 120

Answer : C

Explanation

Let the required annual installment be Rs. x. then,
(Amount of Rs. x for 4 year) + (amount of Rs. x for 3 year) + (amount of Rs.x for 2 year) + (amount of Rs.x for 1 year) + Rs. x = 580
=> (x+ x*8*4/100) +(x+ x*8*3/100) + (x+ x*8*2/100) + (x+ x*8*1/100) +x= 580
=> (x+ 8 x/25) +(x+ 6 x/25) + (x+ 4 x/25) + (x+ 2 x/25) +x = 580
=>   33x/25 + 31x/25 + 29x/25+ 27x/25+x = 580
=> (33x+31x+29x+27X+25x) = 14500 =>145x = 14500 => x= 100.
Required installment = Rs. 100.

Q 5 - Rs.1000 contributed at 5% p.a. S.I. In the event that the interest is added to the rule after at regular intervals, the sum will be gets to be Rs 2000 after.

A - 15 years

B - 50/3 years

C - 18 years

D - 20/3 years

Answer : D

Explanation

S.I for the 10 years = Rs. (1000* 5/100*10) = Rs. 500
Principle after 10 years becomes = Rs. (1000+500) = Rs. 1500
S.I on it = Rs. (2000- 1500) = 500
Time = (100*500/ 5*1500) years = 20/3 years

Q 6 - Vishwas borrowed a total amount of Rs 30,000 part of it at 12 % per annum and remaining at 10% per annum. If at the end of two years he paid in all Rs 36,480 to settle the loan amount, what was the amount borrowed at 12 % per annum?

A - Rs 16000

B - Rs 18000

C - Rs 17500

D - Rs 12000

Answer : D

Explanation

Let the sum borrowed at 12% per annum be Rs x.
So, sum borrowed at 10% per annum = Rs (30000 - x)
Simple Interest = Rs 36480 ? Rs 30000 = Rs 6480

According to the question,
x*2*12/100 + (30000 - x)*2*10/100 = 6480
or, 24x + 600000 - 20x = 648000
or, 4x = 48000
or, x = 12000

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?

A - 12%

B - 13

C - 12.5%

D - 14%

Answer : A

Explanation

S.I. for 3 year = Rs. (12005 - 9800) = 2205
S.I. for 5 years = Rs. (2205 x 53) = 3675
Therefore Principal = (9800 - 3675) = 6125
Hence, Rate = (100 x 36756125 x 5) = 12%

Q 8 - Peter invested an amount of Rs. 12000 at rate of interest of 10% p.a. simple interest and another amount at the rate of 20% p.a. simple interest. The total interest earned at the end of one year on the total amount invested became 14 p.c.p.a. Find the total amount invested?

A - 20000

B - 25000

C - 30000

D - 35000

Answer : A

Explanation

Let the second number be z. then, 
(12000 x 10 x 1100 + z x 20 x 1100) = ((12000 + z) x 14 x 1100) = 12000 + 20z = 168000 + 14z
= 6z = 48000
z = 8000
Therefore Total investment = Rs. (12000 + 8000) = 20000

Q 9 - Straightforward enthusiasm on a sure aggregate is 16/25 of the entirety. Discover the rate percent and time if both are equivalent?

A - 8% p.a., 8 years

B - 9% p.a., 9 years

C - 10% p.a., 10 years

D - 11% p.a., 11 years

Answer : A

Explanation

Let the standard be Rs. x. At that point, S.I = Rs. (16x/25)
Let rate = R% p.a. also, time = R years. Then,
S.I = (p*r*t)/100 = (100*p/P*8) => 16x/25 = (x*R*R/100) => R2= 64 => R= 8.
Thus, rate = 8% P.a. what's more, time = 8Years.


aptitude_simple_interest.htm

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