Aptitude and Reasoning Questions

Q:

If x = 4 + √15, then what is the value of [x2 + (1/x2)]?

 

A) 62 B) 64
C) 34 D) 36
 
Answer & Explanation Answer: A) 62

Explanation:
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Q:

The ratio of two numbers is 3 : 4 and their H.C.F is 4. Their L.C.M is 

A) 12 B) 16
C) 24 D) 48
 
Answer & Explanation Answer: D) 48

Explanation:

Let the numbers be  3x and 4x . Then their H.C.F = x. So, x=4

 Therefore, The numbers are 12 and 16

 L.C.M of 12 and 16 = 48

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Q:

If sec θ + tan θ = 2, then sec θ - tan θ = ?

 

A) 0.5 B) 1.5
C) 1 D) 0.75
 
Answer & Explanation Answer: A) 0.5

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Q:

If (x + 1x) = 2, then find the value of (x3 + 1x3) ÷ (x18 + 1x18)

 

A) 2/9 B) 5
C) 1 D) 1/9
 
Answer & Explanation Answer: C) 1

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Q:

Which of the following statement (s) is/are TRUE?

I. 4√3 > 3√4

II. 8√2 > 2√8

A) Only I B) Only II
C) Neither I nor I D) Both I and I
 
Answer & Explanation Answer: D) Both I and I

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Q:

Solve the following

 

24/(19 - 9 / 3 x 9) = ?

A) -3 B) -4
C) 3 D) 6
 
Answer & Explanation Answer: A) -3

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Q:

Arrange the words given below in a meaningful sequence.

1. Heel  2. Shoulder  3. Skull  4. Neck  5. Knee  6. Chest  7. Thigh  8. Stomach  9. Face  10. Hand

A) 3, 4, 7, 9, 2, 5, 8, 10, 6, 1 B) 3, 9, 4, 2, 10, 6, 8, 7, 5, 1
C) 2, 4, 7, 10, 1, 5, 8, 9, 6, 3 D) 4, 7, 10, 1, 9, 6, 2, 5, 8, 3
 
Answer & Explanation Answer: B) 3, 9, 4, 2, 10, 6, 8, 7, 5, 1

Explanation:

The correct order is :

Skull  Face  Neck  Shoulder  Hand  Chest  Stomach  Thigh  Knee  Heel

     3        9        4           2            10          6            8             7         5          1

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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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