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 - 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?

A - Rs 12500

B - Rs 15800

C - Rs 33250

D - cannot be resolved

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:

A - Rs 45000

B - Rs 3200

C - Rs 50000

D - Rs 65000

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:

A - Rs 22400

B - Rs 23800

C - Rs 24600

D - Rs 26000

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:

A - 10 %

B - 8 %

C - 6 %

D - 25/2 %

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?

A - Rs 3414

B - Rs 3921

C - Rs 3807

D - Rs 3149

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

A - 5%

B - 20/3%

C - 6%

D - 7%

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 1212%, a man's yearly income increases by Rs. 1250. his principal (in Rs) is?

A - 45000

B - 50000

C - 60000

D - 65000

Answer : B

Explanation

Let the sum be z. Then,
(z x 252 x 1100) - (z x 10 x 1100) = 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?

A - 1200

B - 1250

C - 1300

D - 1500

Answer : A

Explanation

Let the parts be a,b and [2600 - (a + b)] then,
a x 4 x 1100) = (b x 6 x 1100) = ([2600 - ( a + b)] x 8 x 1100)
= ba = 46 = 23 or y = 2a3
So, a x 4100 (7800 - 5a) x 83
= 52a = (7800 x 8) 
a = 7800 x 852 = 1200


aptitude_simple_interest.htm

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