Quantitative Aptitude - Arithmetic Ability Questions

Q:

If cosθ = x2-y2x2+y2, then the value of cotθ is

A) 2xyx2-y2 B) 2xyx2+y2
C) x2+y22xy D) x2-y22xy
 
Answer & Explanation Answer: D) x2-y22xy

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Q:

What is the equation of the line passing through the point (1,3) and making an angle of -45° with the positive x-axis?

A) x + y = 4 B) x + y = 2
C) x - y = 4 D) x - y = 2
 
Answer & Explanation Answer: A) x + y = 4

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Q:

What are the co­ordinates of the centroid of a triangle, whose vertices are A(­2,­5), B(4,­4) and C(7,3)?

A) (4,­-3) B) (-­1,0)
C) (-­3,­-3) D) (3,­-2)
 
Answer & Explanation Answer: D) (3,­-2)

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Q:

What is the third proportional to 10 and 25?

A) 125 B) 150
C) 62.5 D) 225
 
Answer & Explanation Answer: C) 62.5

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Q:

Select the odd word/letters/number/number pair from the given alternatives.

A) 369 B) 257
C) 346 D) 628
 
Answer & Explanation Answer: C) 346

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Q:

If 3 dozen guavas cost Rs. 90, how many guavas can be bought for Rs. 240?

A) 98 B) 96
C) 102 D) 90
 
Answer & Explanation Answer: B) 96

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Q:

The length of the diagonal and the breadth of a rectangle is 13 cm and 5 cm respectively. Calculate its area (in cm²).

 

A) 60 B) 120
C) 37 D) 74
 
Answer & Explanation Answer: A) 60

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Q:

Of the three numbers, the average of the first number and the second number is 37 more than the average of second number and third number. What is the difference between the first and the third number?

A) 74 B) 73
C) 37 D) cannot be determined
 
Answer & Explanation Answer: A) 74

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