Aptitude and Reasoning Questions

Q:

Smaller diagonal of a rhombus is equal to length of its sides. If length of each side is 4 cm, then what is the area (in cm2) of an equilateral triangle with side equal to the bigger diagonal of the rhombus?

A) 6 B) 9√3
C) 12 D) 12√3
 
Answer & Explanation Answer: D) 12√3

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Filed Under: Simplification
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Q:

The arithmetic mean of the marks scored by students of a class is 58. 20% of them secured a mean score of 60. The mean score of another 30% of the students was 40. The mean score of the remaining students is

A) 65 B) 66
C) 68 D) 70
 
Answer & Explanation Answer: C) 68

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Filed Under: Percentage
Exam Prep: Bank Exams

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Q:

What is the value of (cot60 + 1/√3) ?

A) 4/√3 B) (2√2+√3)/2
C) 2/√3 D) (2√2+1)/√2
 
Answer & Explanation Answer: C) 2/√3

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Exam Prep: Bank Exams , CAT

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Q:

If x + 2(3-5x) > -1 - 2x < 5 - x/3; then the value of x is

A) -3 B) -4
C) 2 D) 3
 
Answer & Explanation Answer: A) -3

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Q:

Total surface area of a cube is 486 sq cm, find sum of length of all its edges?

A) 216 cms B) 108 cms
C) 54 cms D) 162 cms
 
Answer & Explanation Answer: B) 108 cms

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Filed Under: Volume and Surface Area
Exam Prep: Bank Exams

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Q:

A root of equation ax2 + bx + c = 0 (where a, b and c are rational numbers) is 5 + 3√3. What is the value of (a2 + b2 + c2)/(a + b + c)?

A) 35/3 B) 37/3
C) – 105/11 D) – 105/13
 
Answer & Explanation Answer: C) – 105/11

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Q:

If A alone can do a job in 40 days then, in how many days can B alone do the job if together they can do the job in 8 days?

A) 15 B) 10
C) 20 D) 25
 
Answer & Explanation Answer: B) 10

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Filed Under: Time and Work
Exam Prep: Bank Exams

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Q:

If sinθ x cosθ = 1⁄2 . The value of sinθ ­- cosθ is where 0°< θ< 90°

A) 0 B) √2
C) 2 D) 1
 
Answer & Explanation Answer: A) 0

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