6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

To make a profit of 20% the selling price of the good is Rs. 240. The cost price of the good is,

A) Rs. 200	B) Rs. 210
C) Rs. 220	D) Rs. 230

Answer & Explanation Answer: A) Rs. 200

Explanation:

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Filed Under: Profit and Loss
Exam Prep: Bank Exams

3 2517

Q:

A wholesaler sells a watch to a retailer at a profit of 25% and the retailer sells it to a customer at a loss of 12%. If the customer pays Rs 1045, what had it cost the wholesaler?

A) Rs 950	B) Rs 1149
C) Rs 1244	D) Rs 751

Answer & Explanation Answer: A) Rs 950

Explanation:

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Filed Under: Profit and Loss
Exam Prep: Bank Exams

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Q:

The difference of squares of two numbers is 180. The square of the smaller number is 8 times the larger number. Find two numbers.

A) 10 & 12	B) 10 & 18
C) 12 & -18	D) -12 & 18

Answer & Explanation Answer: D) -12 & 18

Explanation:

Given, difference of the squares of two numbers is 180.

= k² - l² - 180

Also, square of the smaller number is 8 times the larger.

= l²= 8k

Thus, k² - 8a - 180 = 0

k² – 18k + 10k - 180 = 0

→ k(k - 18) + 10(k – 18) = 0

= (k + 10)(k – 18) = 0

→ k = -10, 18

Thus, the other number is

324 - 180 = l²

→ Numbers are 12, 18 or -12, 18.

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Filed Under: Numbers
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0 2516

Q:

An item is sold at two successive gains of 30% and 20%. If the final selling price is Rs 31200, then what is the cost price (in Rs)?

A) 15000	B) 20000
C) 22250	D) 24000

Answer & Explanation Answer: B) 20000

Explanation:

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Filed Under: Profit and Loss
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Q:

If $x + \frac{1}{x} = 5, then the value of \frac{6 x}{x^{2} + x + 1} is,$

A) 1	B) 2
C) 3	D) 4

Answer & Explanation Answer: A) 1

Explanation:

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Filed Under: Quantitative Aptitude - Arithmetic Ability
Exam Prep: AIEEE , Bank Exams , GATE

8 2514

Q:

Can yoy guess the Age of Karthik & Kalyan ?

age_31499317915.jpg image

A) 68 & 44	B) 64 & 48
C) 58 & 54	D) 76 & 36

Answer & Explanation Answer: B) 64 & 48

Explanation:

Given Karthik + Kalyan = 112

Given that when karthik is at the age of kalyan he is twice of Kalyan's age

i.e When he was 48 means Kalyan is at 24

=> Present age of Kalyan is 48

And that of Karthik is 112 - 48 = 64

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Filed Under: Problems on Ages
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9 2511

Q:

Sandy and Mandy do (8/13)th part of a work and the rest of the work was completed by Andy. If Sandy, Mandy and Andy take the same work for Rs. 2600, then what is the share (in Rs) of Andy?

A) 1600	B) 1400
C) 800	D) 1000

Answer & Explanation Answer: D) 1000

Explanation:

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Filed Under: Time and Work
Exam Prep: Bank Exams

3 2510

Q:

After two successive discounts of 20% and 12% an article is sold for Rs 16896. What is the marked price (in Rs) of the article?

A) 21500	B) 23800
C) 22000	D) 24000

Quantitative Aptitude - Arithmetic Ability Questions

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