6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

The ratio between present ages of Renuka and Sony is 5 : 4 . 4 years ago, Sony's age was 24 years. What will be Renuka's age after 5 years ?

A) 25	B) 30
C) 35	D) 40

Answer & Explanation Answer: D) 40

Explanation:

Present age of Sony = 24 + 4 = 28 years

After 5 years Renuka's age = 7×5 + 5 = 40 years

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Filed Under: Problems on Ages
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8 4054

Q:

A committee of 4 people is to be formed from a group of 9 people.How many possible committees can be formed?

A) 120	B) 162
C) 126	D) 170

Answer & Explanation Answer: C) 126

Explanation:

This question is a combination since order is not important.

Answer = $7 C_{3}$ = 126

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Filed Under: Permutations and Combinations

1 4053

Q:

What is the value of (cosec60 - 1/2) ?

A) (4-√3)/2√3	B) (2√3-1)/√3
C) (3√3-1)/3	D) 1/√3

Answer & Explanation Answer: A) (4-√3)/2√3

Explanation:

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Filed Under: Simplification
Exam Prep: Bank Exams

0 4049

Q:

A shopkeeper sells two articles at Rs.1000 each, making a profit of 30% on the first article and a loss of 20% on the second article. Find the net profit or loss that he makes ?

A) 0.85 %	B) 0.95 %
C) 1.0 %	D) 1.3 %

Answer & Explanation Answer: B) 0.95 %

Explanation:

SP of first article = 1000
Profit = 30%
CP = (SP)x[100/(100+P)] = 10000/13

SP of second article = 1000
Loss = 20%
CP = (SP)x[100/(100-L)] = 5000/4 = 1250

Total SP = 2000

Total CP = 10000/13 + 1250 = 2019.23

CP is more than SP, he makes a loss.

Loss = CP-SP = 2019.23 - 2000 = 19.23
Loss Percent = [(19.23)/(2019.23)]x100 = 0.95 %.

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Filed Under: Profit and Loss
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6 4048

Q:

Two candidates fought in a municipality election. One of them got 54% of the total votes pooled and won by 1080 votes. What was the total number of votes polled ?

A) 12000	B) 13500
C) 15400	D) 11000

Answer & Explanation Answer: B) 13500

Explanation:

Given in municipality election 54% votes have won by 1080

Let the total number of votes be x.

$\frac{54 x}{100} - \frac{46 x}{100} = 1080$

8x = 108000

x = 13,500

Therefore, total number of votes = 13,500.

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Filed Under: Percentage
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7 4047

Q:

If L exceeds K by 30%, then K is less than L by ?

A) 14 2/5 %	B) 23 1/3 %
C) 20 %	D) 16 %

Answer & Explanation Answer: B) 23 1/3 %

Explanation:

K = 100 L = 130
130------ 30
100------- ? => 23 1/13 %

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Filed Under: Percentage
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3 4046

Q:

'X' sells fruits at 21% profit. If X bought it for 9% less and sold it for Rs.29 less, he would have gained 25%. The cost price of fruits is?

A) Rs. 400	B) Rs. 420
C) Rs. 460	D) Rs. 480

Answer & Explanation Answer: A) Rs. 400

Explanation:

Let the cost price of the fruits be 'C.P'

From the given data, after analysis it can be solved as

(121% of C.P) - (125% of 91% of C.P) = 29

$\frac{121}{100} C . P - \frac{125}{100} x \frac{91}{100} x C . P = 29 (\frac{121}{100} - \frac{125 x 91}{100 x 100}) C . P = 29 (12100 - 125 x 91) C . P = 290000 (12100 - 11375) C . P = 290000 725 C . P = 290000 C . P = 400$

Hence, the cost price of the fruits = Rs. 400.

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Filed Under: Profit and Loss
Exam Prep: AIEEE , Bank Exams , CAT , GATE
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13 4045

Q:

Select the letter which does NOT belong to the group.

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

Quantitative Aptitude - Arithmetic Ability Questions

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