Quantitative Aptitude - Arithmetic Ability Questions

Q:

A shopkeeper purchased a pen drive of marked price Rs. 1000 at successive discounts of 10% & 15% respectively. He spent Rs. 35 on packaging and sold it on Rs. 1000. Calculate the Gain percent.

 

A) No Gain B) 25%
C) 30% D) 35%
 
Answer & Explanation Answer: B) 25%

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Q:

The co-ordinates of the centroid of a triangle ABC are (1 , -4). What are the co-ordinates of vertex C if co-ordinates of A and B are (3 , -4) and (0 , 5) respectively?

A) (0 , 13) B) (0, 5)
C) (0, -5) D) (0 , -13)
 
Answer & Explanation Answer: D) (0 , -13)

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Q:

 In a fraction when 3 is added to its numerator and denominator it becomes 4/5. And it becomes 1/2 when 2 is subtracted from both the numerator and denominator. Find the fraction.

 

A) 15/16   B) 14/16
C) 11/16   D) 9/16
 
Answer & Explanation Answer: C) 11/16  

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Q:

If 70% of 5/7th of a number is 90, find the number.

A) 150 B) 180
C) 160 D) 190
 
Answer & Explanation Answer: B) 180

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Q:

In a triangle, the length of the side opposite the angle which measures 45° is 16 cm, what is the length of the side opposite to the angle which measures 90°? 

A) 8√3 cm B) 16√2 cm
C) 8 cm D) 16√3 cm
 
Answer & Explanation Answer: B) 16√2 cm

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Q:

If the side of the equilateral triangle is 6√3 cm, then what is length (in cm) of the circum radius of that triangle?

 

A) 4 B) 6
C) 8 D) 12
 
Answer & Explanation Answer: B) 6

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Q:

Two circles touch each other externally. The distance between their centres is 7 cm. If the radius of one circle is 4 cm, then the radius of the other circle will be

A) 3 cm B) 4 cm
C) 5.5 cm D) 3.5 cm
 
Answer & Explanation Answer: A) 3 cm

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Q:

In a triangle the length of the side opposite the angle which measures 60° is 15 cm, what is the length of the side opposite to the angle which measures 90°? 

A) 15 cm B) (15√3)/2 cm
C) 10√3 cm D) 10 cm
 
Answer & Explanation Answer: C) 10√3 cm

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