Quantitative Aptitude - Arithmetic Ability Questions

Q:

If the zeroes of the polynomial x2 - ax + b are 3 and 4, then 'a' and 'b' are respectively equal to

A) 4, 3 B) 12, 7
C) 3, 4 D) 7, 12
 
Answer & Explanation Answer: D) 7, 12

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Q:

Slope of the line AB is -2/3. Co-ordinates of points A and B are (x , -3) and (5 , 2) respectively. What is the value of x?

A) 4 B) -14
C) 12.5 D) -4
 
Answer & Explanation Answer: C) 12.5

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Q:

If x2  12x + 33 = 0, then what is the value of (x  4)2 + [1/(x  4)2]?

A) 16 B) 14
C) 18 D) 20
 
Answer & Explanation Answer: B) 14

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Q:

The two sides holding the right-angle in a right-angled triangle are 3 cm and 4 cm long. The area of its circumcircle will be in sq.cm:

A) 6.25pi B) 6.75pi
C) 5pi D) 7pi
 
Answer & Explanation Answer: A) 6.25pi

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Q:

A point P lying inside a triangle is equidistant from the vertices of the triangle. Then the triangle has P as its

A) Centroid B) Incentre
C) Orthocentre D) Circumcentre
 
Answer & Explanation Answer: D) Circumcentre

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Q:

What is the difference of the factors of the expression x2 + (1/x2) – 6?

A) 0 B) 1
C) 2 D) 4
 
Answer & Explanation Answer: D) 4

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Q:

If x+3y=-3x+y, then x22y2 is equal to

A) 1/8 B) 1/2
C) 1/4 D) 4
 
Answer & Explanation Answer: A) 1/8

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Q:

If a chord of a circle subtends an angle of 30° at the circumference of the circle, then what is the ratio of the radius of the circle and the length of the chord respectively?

A) 1 : 1 B) 2 : 1
C) 3 : 1 D) √2 : 1
 
Answer & Explanation Answer: A) 1 : 1

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