Quantitative Aptitude

General Questions

Quantitative Aptitude Exercise Mode

General Questions

Practice and master this topic with our carefully crafted questions.

10 Questions
15 Minutes
0% Completed
QUEST ? ✓ !
Question 21
A man took loan from a bank at the rate of 12% p.a. simple interest. After 3 years he had to pay ₹ 5400 interest only for the period. The principal amount borrowed by him was:

A
₹ 2000
B
₹ 10,000
C
₹ 15,000
D
₹ 20,000
Correct Answer: Option C
Principal
= ₹ 100 x 5400
12 x 3
= ₹ 540000
36
= ₹ 15000.
Question 22
At what rate percent per annum will the simple interest on a sum of money be of the amount in 10 years ?

A
4%
B
52/3%
C
6%
D
62/3%
Correct Answer: Option A

Let sum = X. Then,
S.I. = 2X / 5 , Time = 10 years.

Rate = 100 x 2X % = 4%
X x 5 x 10

Question 23
A leads ₹ 2500 to B and a certain sum to C at the same time at 7% p.a. simple interest. If after 4 years, A altogether receives ₹ 1120 as interest from B and C, then the sum lent to C is:
A
₹ 700
B
₹ 1500
C
₹ 4000
D
₹ 6500
Correct Answer: Option B

Let the sum lent to C be ₹ X. Then,

2500 x 7 x 4 + X x 7 x 4 = 1120
100 100

<=> 7X /25 = (1120 - 700)

<=> ₹ (420 x 25) / 7 = ₹ 1500

Question 24
The difference between the simple interest received from two different sources on the ₹ 1500 for 3 years is ₹ 13.50. The difference between their rates of interest is :

A
0.1%
B
0.2%
C
0.3%
D
0.4%
E
None of these
Correct Answer: Option C

1500 x R1 x 3 - 1500 x R2 x 3 = 13.50
100 100

<=> 4500 R1 - R2 = 1350

<=> R1 - R2 = 1350 / 4500 = 0.3%

Question 25
Mr. Thomas invested an amount of ₹ 13,900 divided in two different schemes A and B at the simple interest rate of 14% p.a. and 11% p.a. respectively. If the total amount of simple interest earned in 2 years be ₹ 3508, what was the amount invested in Scheme B?

A
₹ 6400
B
₹ 6500
C
₹ 7200
D
₹ 7500
E
None of these
Correct Answer: Option A

Let the sum invested in Scheme A be ₹ X and
that in Scheme B be ₹ (13900 - X).

Then, X x 14 x 2 + (13900 - X) x 11 x 2
100 100

= 3508

<=> 28x - 22x = 350800 - (13900 x 22)

<=> 6x = 45000

<=> x = 7500.

So, sum invested in Scheme B = ₹ (13900 - 7500)

= ₹ 6400.

Question 26
A sum ₹ 1440 is lent out in three parts in such a way that the interest on first part at 2% for 3 yr, second part at 3% for 4 yr and third part at 4% for 5 yr equal . Then, the difference between the largest and the smallest sum is?

A
₹ 400
B
₹ 560
C
₹ 460
D
₹ 200
Correct Answer: Option B

Let the first part be ₹ A.
second part be ₹ B
and third part be Rs C 


According to the question.
(A x 2 x 3)/100 = (B x 3 x 4)/100 = (C x 4 x 5)/ 100
⇒ 3A = 6B = 10C = k
∴ A = k/3, B = k/100 and C = k /10


Now, A + B + C = 1440
⇒ k/3 + k/6 + k/10 = 1440 ⇒ k = 2400
∴ so the difference = k/3 - k/10 = 7k/30 = 7/30 x 2400 = ₹ 560

Question 27
The price of a T.V. set worth ₹ 20,000 is to be paid in 20 instalments of ₹ 1000 each. If the rate of interest be 6% per annum, and the first instalment be paid at the time of purchase, then the value of the last instalment covering the interest as well will be

A
₹ 1050
B
₹ 2050
C
₹ 3000
D
None of these
Correct Answer: Option D

Money paid in cash = ₹ 1000.
 Balance payment = ₹ (20000 - 1000)
                              = ₹ 19000.

Question 28
Peter invested an amount of ₹ 12,000 at the rate of 10 p.c.p.a. simple interest and another amount at the rate of 20 p.c.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
₹ 20,000
B
₹ 22,000
C
₹ 24,000
D
₹ 25,000
E
None of these
Correct Answer: Option A

Let the second amount be ₹ X. Then,

12000 x 10 x 1 + X x 20 x 1
100 100

= (12000 + X) x 14 x 1


100

<=> 12000 + 20X = 168000 + 14X
<=> 6X = 48000
<=> X = 8000.

Total investment = ₹ (12000 + 8000)

= ₹ 20000.

Question 29
If the annual rate of simple interest increases from 10% to 12 %, a man's yearly income increases by ₹ 1250. His principal (in ₹) is :

A
45,000
B
50,000
C
60,000
D
65,000
Correct Answer: Option B

Let the sum be ₹ X. Then,

X x 25 x 1 - X x 10 x 1 = 1250
2 100 100

<=> 25X - 20X = 250000
<=> 5X = 250000
<=> X = 50000

Question 30
A sum of ₹ 2600 is lent out in two parts in such a way that the interest on one part at 10% for 5 years is equal to that on another at 9% for 6 years. The sum lent out at 10% is :

A
₹ 1150
B
₹ 1250
C
₹ 1350
D
₹ 1450
Correct Answer: Option C

Let the sum lent at 10% be ₹ X and that lent at 9% be ₹ (2600 - X). Then,

X x 10 x 5 + (2600 - X) x 9 x 6
100 100

<=> 50X = (2600 x 54) - 54X


 x =  2600 x 54
104

= 1350.
Sum lent at 10% = ₹ 1350.

Previous 1 2 3 4 Next
Page 3 of 4