Aptitude and Reasoning Questions

Q:

There were 42 students in a hostel. Due to the admission of 13 new students, the expenses of the mess increase by Rs. 30 per day while the average expenditure per head diminished by Rs. 3. What was the original expenditure of the mess ?

A) Rs. 630 B) Rs. 580
C) Rs. 470 D) Rs. 690
 
Answer & Explanation Answer: A) Rs. 630

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Q:

The quadratic equation 1+a2x2+2abx+b2-c2=0 has only one root. What is the value of c21+a2 ?

A) a2 B) b2
C) c2 D) ab
 
Answer & Explanation Answer: B) b2

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Filed Under: Simplification
Exam Prep: Bank Exams

0 2141
Q:

In the figure, B and C are the centres of the two circles. ADE is the common tangent to the two circles. If the ratio of the radius of both the circles is 3:5 and AC= 40, then what is the value of DE?

A) 3√15 B) 5√15
C) 6√15 D) 4√15
 
Answer & Explanation Answer: D) 4√15

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Filed Under: Area
Exam Prep: Bank Exams , CAT

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Q:

Introducing a girl, Ankit says, "She is the sister of the son of my mother's sister". How is the girl related to Ankit?

A) Niece B) Daughter
C) Sister D) Cousin
 
Answer & Explanation Answer: D) Cousin

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Filed Under: Blood Relations
Exam Prep: Bank Exams

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Q:

A shopkeeper marks up his wares by 125% and offers 25% discount. What will be the selling price if the cost price (in Rs) is Rs 640?

A) 1080 B) 1000
C) 920 D) 860
 
Answer & Explanation Answer: A) 1080

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Filed Under: Percentage
Exam Prep: Bank Exams

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Q:

Simplify : 69 X 69 X 69 -65 X 65 X 669 X 69 + 69 X 65 + 65 X 65

A) 1 B) 4
C) 0.216 D) 0.164
 
Answer & Explanation Answer: B) 4

Explanation:

69 –65 = 4

69
65 = 4
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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

In the given figure, how many students study only 2 subjects?

A) 11 B) 23
C) 12 D) 40
 
Answer & Explanation Answer: B) 23

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Filed Under: Logical Venn Diagram
Exam Prep: AIEEE , Bank Exams , CAT , GATE

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Q:

If a, b and c are positive integers such that 1a+1b+1c+12 = 1623, then what is the mean of a, b and c?

A) 1 B) 2
C) 1.33 D) 2.33
 
Answer & Explanation Answer: B) 2

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