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Q:

If (x  2)2 + (y + 3)2 + (z  15)2 = 0, then what is the value of x + y + z – 5?

A) 5 B) 9
C) 15 D) 20
 
Answer & Explanation Answer: B) 9

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Filed Under: Simplification
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Q:

What is the value of tan 6° tan 36° tan 84° tan 54° tan 45°?

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

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Q:

PQ is the chord of a circle whose centre is O. ROS is a line segment originating from a point R on the circle that intersect PQ produced at point S such that QS = OR. If ∠QSR = 30°, then what is the value (in degrees)of POR?

A) 30 B) 45
C) 60 D) 90
 
Answer & Explanation Answer: D) 90

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Q:

The two equal sides of an isosceles triangle is 20 cm each and the third side is 30 cm. What is the area (in sq.cm) of the triangle?

A) 50√5 B) 100
C) 75√7 D) 175
 
Answer & Explanation Answer: C) 75√7

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Q:

Δ DEF is right angled at E. If m∠F = 45°, then what is the value of 2 Sin F x Cot F?

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

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Q:

What is the value of Cot 45° - (1/√3)Cosec 60°?

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

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Q:

D and E are points on side AB and AC of ΔABC. DE is parallel to BC. If AD:DB = 2:5 and area of ΔABC is 98 cm sq, what is the area (in sq cm) of quadrilateral BDEC?

A) 90 B) 98
C) 94 D) 86
 
Answer & Explanation Answer: A) 90

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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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Filed Under: Volume and Surface Area
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