Quantitative Aptitude

General Questions

Quantitative Aptitude Exercise Mode

General Questions

Practice and master this topic with our carefully crafted questions.

10 Questions
15 Minutes
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Question 1
The true discount on Rs. 1760 due after a certain time at 12% per annum is Rs. 160. The time after which it is due is:

A
6 months
B
8 months
C
9 months
D
10 months
Correct Answer: Option D

P.W. = Rs. (1760 -160) = Rs. 1600.

S.I. on Rs. 1600 at 12% is Rs. 160.

Time = 100 x 160 = 5 years 


1600 x 12 6

    =5x 12months = 10 months.


6
Question 2
The true discount on a bill due 9 months hence at 16% per annum is Rs. 189. The amount of the bill is:

A
Rs. 1386
B
Rs. 1764
C
Rs. 1575
D
Rs. 2268
Correct Answer: Option B

Let P.W. be Rs. x.

Then, S.I. on Rs. x at 16% for 9 months = Rs. 189.

x x 16 x 9 x 1 = 189 or x = 1575.
12 100

P.W. = Rs. 1575.

Sum due = P.W. + T.D. = Rs. (1575 + 189) = Rs. 1764.

Question 3
The present worth of Rs. 2310 due 2 years hence, the rate of interest being 15% per annum, is:

A
Rs. 1750
B
Rs. 1680
C
Rs. 1840
D
Rs. 1443.75
Correct Answer: Option B

P.W. = Rs. 100 x 2310 = Rs. 1680.
100 + 15 x 5
2

Question 4
A man purchased a cow for Rs. 3000 and sold it the same day for Rs. 3600, allowing the buyer a credit of 2 years. If the rate of interest be 10% per annum, then the man has a gain of:

A
0%
B
5%
C
7.5%
D
10%
Correct Answer: Option A

C.P. = Rs. 3000.

S.P. = Rs. 3600 x 100 = Rs. 3000.
100 + (10 x 2)

Gain = 0%.

Question 5
If Rs. 10 be allowed as true discount on a bill of Rs. 110 due at the end of a certain time, then the discount allowed on the same sum due at the end of double the time is:

A
Rs. 20
B
Rs. 21.81
C
Rs. 22
D
Rs. 18.33
Correct Answer: Option D

S.I. on Rs. (110 - 10) for a certain time = Rs. 10.

S.I. on Rs. 100 for double the time = Rs. 20.

T.D. on Rs. 120 = Rs. (120 - 100) = Rs. 20.

T.D. on Rs. 110 = Rs. 20 x 110 = Rs. 18.33
120

Question 6
A man wants to sell his scooter. There are two offers, one at Rs. 12,000 cash and the other a credit of Rs. 12,880 to be paid after 8 months, money being at 18% per annum. Which is the better offer?

A
Rs. 12,000 in cash
B
Rs. 12,880 at credit
C
Both are equally good
Correct Answer: Option A

P.W. of Rs. 12,880 due 8 months hence :


= Rs. 12880 x 100
100 + 18 x 8
12
= Rs. 12880 x 100
112
= Rs. 11500.
Question 7
A trader owes a merchant Rs. 10,028 due 1 year hence. The trader wants to settle the account after 3 months. If the rate of interest 12% per annum, how much cash should he pay?

A
Rs. 9025.20
B
Rs. 9200
C
Rs. 9600
D
Rs. 9560
Correct Answer: Option B
Required money = P.W. of Rs. 10028 due 9 months hence
= Rs. 10028 x 100
100 + 12 x 9
12
= Rs. 9200.
Question 8
A man buys a watch for Rs. 1950 in cash and sells it for Rs. 2200 at a credit of 1 year. If the rate of interest is 10% per annum, the man:

A
gains Rs. 55
B
gains Rs. 50
C
loses Rs. 30
D
gains Rs. 30
Correct Answer: Option B

S.P. = P.W. of Rs. 2200 due 1 year hence
= Rs. 2200 x 100
100 + (10 x 1)
= Rs. 2000.

Gain = Rs. (2000 - 1950) = Rs. 50.

Question 9
Goods were bought for Rs. 600 and sold the same for Rs. 688.50 at a credit of 9 months and thus gaining 2% The rate of interest per annum is:

A
16(2/3)%
B
14(1/2)%
C
13(1/3)%
D
15%
Correct Answer: Option A

S.P. = 102% of Rs. 600 = 102 x 600 = Rs. 612.
100

Now, P.W. = Rs. 612 and sum = Rs. 688.50.

T.D. = Rs. (688.50 - 612) = Rs. 76.50.

Thus, S.I. on Rs. 612 for 9 months is Rs. 76.50.

Rate = 100 x 76.50 % = 16%
612 x 3
4

Question 10
Rs. 20 is the true discount on Rs. 260 due after a certain time. What will be the true discount on the same sum due after half of the former time, the rate of interest being the same?

A
Rs. 10
B
Rs. 10.40
C
Rs. 15.20
D
Rs. 13
Correct Answer: Option B

S.I. on Rs. (260 - 20) for a given time = Rs. 20.

S.I. on Rs. 240 for half the time = Rs. 10.

T.D. on Rs. 250 = Rs. 10.

T.D. on Rs. 260 = Rs. 10 x 260 = Rs. 10.40
250

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