Quantitative Aptitude - Arithmetic Ability Questions

Q:

For triangle ABC, what would be the equation of median AD if co-ordinates of A, B and C are (-5,4), (-4,0) and (-2,2) respectively?

A) 3x - 2y = -11 B) 3x + 2y = 7
C) 3x + 2y = -7 D) 3x - 2y = 11
 
Answer & Explanation Answer: C) 3x + 2y = -7

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Q:

If x - y = -8 and xy = 45, then (x2 + y2) is

A) 154 B) 64
C) 90 D) 26
 
Answer & Explanation Answer: A) 154

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Q:

The point P(-­4,1) divides the segment joining the points (x,0) and (0,y) in the ratio 3:2. Find x and y?

A) x = ­-10; y = 5/3 B) x = ­-10; y = ­-5/3
C) x = 10; y = 5/3 D) x = 10; y = ­-5/3
 
Answer & Explanation Answer: A) x = ­-10; y = 5/3

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Q:

2 ­- (cosA + sinA)2 is equal to

A) (cosecA -­ sinA)2 B) cosA ­- sinA
C) cosecA ­- sinA D) (cosA -­ sinA)2
 
Answer & Explanation Answer: D) (cosA -­ sinA)2

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Q:

Which of the following value of 'x' satisfies the equation 814x+4 = 2432x+8?

A) 3 B) 4
C) 5 D) 6
 
Answer & Explanation Answer: B) 4

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Q:

The value of -3+3+87+43 is

A) 2 B) 4
C) ±2 D) -2
 
Answer & Explanation Answer: A) 2

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Q:

Diameter of wheel of a cycle is 21 cm. The cyclist takes 45 minutes to reach a destination at a speed of 16.5 km/hr. How many revolutions will the wheel make during the journey?

A) 12325 B) 18750
C) 21000 D) 24350
 
Answer & Explanation Answer: B) 18750

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Q:

If the diameter of a sphere is 14 cm, then what is the surface area (in sq.cm) of the sphere?

A) 616 B) 308
C) 462 D) 636
 
Answer & Explanation Answer: A) 616

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