Quantitative Aptitude - Arithmetic Ability Questions

Q:

Find co-ordinates of the mid point of the segment joining points C (3,-5) and D (-7,3).

A) (-2, -1) B) (5, -4)
C) (-5, 4) D) (2, 1)
 
Answer & Explanation Answer: A) (-2, -1)

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Q:

If (1 -­ cosA)/(1 + cosA) = x, then the value of x is

A) (cotA + cosecA)2 B) (cotA -­ cosecA)2
C) cotA -  cosecA D) cotA + cosecA
 
Answer & Explanation Answer: B) (cotA -­ cosecA)2

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Q:

What is the area (in sq cm) of a regular hexagon of side 9 cm?

A) 50√3 B) 300√3
C) 243√3/2 D) 200√3
 
Answer & Explanation Answer: C) 243√3/2

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Q:

A dealer allows a discount of 15%. A customer pays an amount of Rs. 318.75 for an article. At what price is the article listed?

A) Rs. 366.50 B) Rs. 375.00
C) Rs. 350.00 D) Rs. 431.25
 
Answer & Explanation Answer: B) Rs. 375.00

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Q:

The areas of two similar triangles ΔXYZ and ΔPQR are 100 sq cms and 25 sq cms respectively. If PQ = 4 cm then what is the length of XY (in cm)?

A) 16 B) 14
C) 8 D) 20
 
Answer & Explanation Answer: C) 8

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Q:

The mean of 10 observations is 13. Two more observations are included and the new mean becomes 14. The mean of two new observations is

 

A) 19 B) 18
C) 17 D) 16
 
Answer & Explanation Answer: A) 19

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Q:

If a is positive and a2+1a2 = 7, then a3 + 1a3 = ?

A) 9 B) 27
C) 18 D) 0
 
Answer & Explanation Answer: C) 18

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Q:

The slopes of two lines are 1 and √3. What is the angle between these two lines?

A) 15° B) 30°
C) 45° D) 60°
 
Answer & Explanation Answer: A) 15°

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