6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

On retirement, a woman gets Rs. 1,45,440 of her provident fund which she invests in a scheme at 20% per annum. Her monthly income from this scheme will be

A) Rs. 2550	B) Rs. 2424
C) Rs. 2224	D) Rs. 2380

Answer & Explanation Answer: B) Rs. 2424

Explanation:

Now, the principal amount P = Rs. 1,45,440

Rate of interest R = 20%/annum

Now monthly income I = PTR/100 = 1,45,440 x 20 x 1/100 x 12

= 2908800/1200

= Rs. 2424.

Hence, her monthly income = Rs. 2424.

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Filed Under: Simple Interest
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4 3717

Q:

The cash realised on selling a 14% stock at Rs. 106.25, brokerage being $\frac{1}{4}$ %, is :

A) RS.105.50	B) RS.106
C) RS.106.50	D) RS.113.75

Answer & Explanation Answer: B) RS.106

Explanation:

Cash realised = Rs. (106.25 - 0.25) = Rs. 106.

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Filed Under: Stocks and Shares

1 3716

Q:

How many 4-letter words with or without meaning, can be formed out of the letters of the word, 'LOGARITHMS', if repetition of letters is not allowed ?

A) 5040	B) 2525
C) 2052	D) 4521

Answer & Explanation Answer: A) 5040

Explanation:

The Word LOGARITHMS contains 10 letters.

To find how many 4 letter words we can form from that = ${}^{10}P_{4}$ =10x9x8x7 = 5040.

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Filed Under: Permutations and Combinations
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4 3716

Q:

If there is a total of 104 weekly instalments and a third deposit, find: the total cost of the computer

A) 3932.55	B) 4932
C) 5932	D) 6932

Answer & Explanation Answer: A) 3932.55

Explanation:

Total cost = deposit + loan + interest
= 1231.67 + 2463.33 + 237.55
= $3932.55

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Filed Under: Simple Interest
Exam Prep: Bank Exams
Job Role: Bank PO

0 3712

Q:

Anmol soldtwo items for Rs 1000 each. On one, he gained 10% and on other, he lost 10%. How much did he gain or lose in the whole transaction?

A) profit,0.95%	B) loss,1%
C) profit,10%	D) loss,10%

Answer & Explanation Answer: B) loss,1%

Explanation:

Let the two item be A and B.

Cost price of A be x and cost price of B be y.

A sold for Rs 1000 on 10 % gain = 1.1x =1000

x= 1000/1.1 = 909.09

B sold for Rs. 1000 on 10% loss = 0.9y =1000y= 1000/0.9 = 1111.11

Total cost price of A and B = 2020.20

Selling price of A and B = 2000

Loss % = (2020.20 –2000)/2000 X 100

= 1.01 % loss

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Filed Under: Profit and Loss

3 3711

Q:

A woman suffered 20% loss on first investment and made 10% profit at second investment and 12 ½% profit on the third investment. If the invested amount be in the ratio of 4 : 5 : 3, find her profit percentage?

A) 0.625%	B) 1.205%
C) 0.987%	D) 0%

Answer & Explanation Answer: A) 0.625%

Explanation:

From the given data,

let the amounts invested be 4p, 5p and 3p

Net profit = Total profit - Total loss

= 10x5p/100 + 25x3p/200 - 20x4p/100

= 0.875p - 0.8p

= 0.075p

Therefore, profit% = (Net profit/Total investment) x 100

= 0.075 x 100/12

= 0.0625%

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Filed Under: Percentage
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9 3711

Q:

Twenty percent of Karthik’s monthly salary is equal to thirty two percent of Nikitha’s monthly salary. Vipin’s monthly salary is four fifth that of Nikitha’s monthly salary. If Vipin’s annual salary is Rs. 3.84 lakhs, what is Karthik’s monthly salary?

A) 32,000	B) 64,000
C) 40,000	D) 52,000

Answer & Explanation Answer: B) 64,000

Explanation:

From the given data,

20% of K = 32% of N

V = 4/5 N

Given Vipin's salary = 3.84 lpa = 3.84/12 = 32,000 per month

Now, N = 5/4 x 32000 = 40000

Now K = 32/20 x 40000 = 64000

Hence, karthik's monthly salary = Rs. 64000.

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Filed Under: Percentage
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10 3707

Q:

4 years ago, the ratio of 1/2 of Anita's age at that time and four times of Bablu's age at that time was 5 : 12. Eight years hence,1/2 of Anita's age at that time will be less than Bablu's age at that time by 2 years. What is Bablu's present age?

A) 10 years	B) 24 years
C) 9 years	D) 15 years

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