Aptitude and Reasoning Questions

Q:

Sinθ Cos(90 - θ) + Cosθ Sin(90 - θ) = 

 

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

Explanation:
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Q:

Today is Varun's birthday. One year, from today he will be twice as old as he was 12 years ago. How old is Varun today ?

A) 20 years B) 22 years
C) 25 years D) 27 years
 
Answer & Explanation Answer: C) 25 years

Explanation:

Let Varun's age today = x years. 

Then, Varun's age after 1 year = (x + 1) years.

Therefore x + 1 = 2 (x - 12) =>  x + 1 = 2x - 24 =>  x = 25.

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Q:

A is the brother of B. B is the brother of C. D is the father of A. Based on these three statements, which of the following statements cannot be definitely true ?

A) B is the brother of A. B) B is the son of D.
C) A is the brother of C. D) C is the brother of A.
 
Answer & Explanation Answer: D) C is the brother of A.

Explanation:

A is the brother of B and B is the brother of C. So, C may be the brother or sister of A. 

 

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Filed Under: Blood Relations

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Q:

If tanα= 2 + 1, then the value of tanα - cotα is

 

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

Explanation:
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Q:

A hall is 15 m long and 12 m broad. If the sum of the areas of the floor and the ceiling is equal to the sum of the areas of four walls, the volume of the hall is:

A) 720 B) 900
C) 1200 D) 1800
 
Answer & Explanation Answer: C) 1200

Explanation:

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Q:

Solve the following :

60 ÷ 5 × 16 - 8 ÷ 2 ÷ 3 = ?

A) 3 B) 48
C) 1 D) 1/3
 
Answer & Explanation Answer: B) 48

Explanation:
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Q:

A car owner buys petrol at Rs 7.50, Rs. 8 and Rs. 8.50 per litre for three successive years. What approximately is the average cost per litre of petrol if he spends Rs. 4000 each year ?

A) 6.23 B) 7.98
C) 8.97 D) 9.89
 
Answer & Explanation Answer: B) 7.98

Explanation:

Total quantity of petrol consumed in 3 years =(4000/7.50+4000/8+4000/8.50)  liters

 

                                                         = 4000(2/15+1/8+2/17) liters                                                   

 

                                                         = 76700/51 liters

 

Total amount spent = Rs. (3 x 4000) = Rs. 12000.

 

Average cost = Rs. (12000*51/76700) = Rs. 7.98.

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Q:

In the following question, select the odd word pair from the given alternatives.

 

A) Mammal – Goat B) Amphibian – Frog  
C) Reptile – Turtle   D) Crocodile – Reptile  
 
Answer & Explanation Answer: D) Crocodile – Reptile  

Explanation:
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Filed Under: Alphabet Test
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