Q. The tenth term of an A.P. : √2, 3√2, 5√2, 7√2, ..... is:
12
10√2
19√2
11√2
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Q. If M is the foot of the perpendicular drawn from P(−5, 2) on X-axis then the co-ordinates of M are ______.
(−5, 0)
(0, −5)
(2, 0)
(5, 0)
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Q. If (1, 4) is the centroid of the triangle having the vertices (a, 3), (4, b) and (−3, 2) then a= _______ and b= _______.
−7, −2
2, 7
−2, −7
−4, 2
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Q. If the angle of elevation of the sun at $$8:00$$ Oclock is $$\alpha$$ and at $$10:00$$ Oclock is $$\beta$$ then ______ holds.
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Q. The angle of elevation of the sum when the length of the shadow of a tower is equal to its height is:
60o
30o
45o
90o
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Q. Which of the following is true for the points X and Y if the co-ordinates of the mid-points P of ¯¯¯¯¯¯¯¯¯XY are (−2, 3)?
X(−4, −2) and Y(0, 4)
X(−4, 3) and Y(2, 2)
X(−6, 2) and Y(2, 4)
X(0, 2) and Y(−2, 4)
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Q. The cost of a pen is Rs.15. If its cost decreases by Rs.x then the number of pens purchased of Rs.600 is _______.
15+x600
60015+x
60015−x
15−x600
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Q. If θ is the measure of an acute angle and √3sinθ=cosθ then θ= _________.
45∘
90∘
60∘
30∘
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Q. Which of the following equations, is not a quadratic equation?
4x2−7x+3=0
2x−7=0
3x2−4x+1=0
4x2−3=0
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Q. The length of the minor arc of ⊙(0, 6) is _______.
More than 6π
Less than 6π
6π
10π
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Q. In the given figure l∥↔AB and l intersects ¯¯¯¯¯¯¯¯AC and ¯¯¯¯¯¯¯¯BC at P and Q respectively. If CP=3, PA=4, QB=6 then BC= ________.
12.5
10.5
7.5
4.5
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Q. ________ lies on X-axis.
(5, 5)
(0, 5)
(0, −5)
(5, 0)
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Q. Which of the following is true for a line l lying in the same plane and intersecting △ABC but not perpendicular to ¯¯¯¯¯¯¯¯BC?
l intersects ¯¯¯¯¯¯¯¯AB or ¯¯¯¯¯¯¯¯AC
l intersects ¯¯¯¯¯¯¯¯AC
l does not intersects ¯¯¯¯¯¯¯¯AB or ¯¯¯¯¯¯¯¯AC
l intersects ¯¯¯¯¯¯¯¯AB
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Q.tan5∘⋅tan25∘⋅tan45∘⋅tan65∘⋅tan85∘= ________.
1
2
5
0
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Q. In △ABC, ∠A is a right angle. If AD⊥BC and DϵBC then which of the following statements are true? 1. AD2=BD⋅DC 2. BC2=AD⋅DC 3. AB2=BD⋅BC 4. AC2=CD⋅BD.
Statements 1 and 4 are true
Statements 1 and 3 are true
Statements 1, 3 and 4 are true
Statements 1 and 2 are true
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Q. For a quadratic equation if D<0 then which of the following is true?
Real roots do not exist
Roots are real and equal
Roots are rational and distinct
Roots are real and distinct
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Q. The mid-points of the sides of any quadrilateral are the vertices of ________.
Parallelogram
Trapezium
Rectangle
Rhombus
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Q. If the roots of the quadratic equation 5x2−2kx+20=0 are real and equal then the value of k is ________.
20
10
−10
10 or −10
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Q. The area of the shaded region in the figure is _________.
4π
6π
9π
3π
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Q. If a tangent l of ⊙(P, 10) touches the circle at A, then PA= _______.
10
5
8
20
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Q. The radius of a semi-circular garden is 35m. One has to walk ______ m to make a trip along its boundary.
175
165
180
110
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Q. For an arithmetic progression; 5, 112, 6, 132, ..... then T40−T20= _________.
15
10
5
20
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Q. If the length of the median of an equilateral triangle is 3√3 then the length of a side of the triangle of _______.
9
6
7.5
3
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Q. If (cos2θ+1cosec2θ)+4=x then what is the value of x?
3
5
6
4
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Q. The angle of elevation of the top of the tower from the point a meter away from the base of the tower is 60∘. The height of the tower is _______ meter.
1√3a
2a
√3a
a
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Q. For △ABC, cos(B+C2)= ________.
cosA2
cosA
sinA2
sinA
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Q. The discriminant of quadratic equation 3x2−4x−1=0 is _______.
28
0
4
12
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Q. As shown in the diagram if AB=11, BC=13 and AC=15 then x+y+z= _____.
19.5
17
17.5
39
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Q. In △ABC if m∠B=90∘ and AB=BC then AC:BC= ____.
√2:1
1:2
1:√2
1:3
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Q. If the nth term of an arithmetic progression is 15n+10 then its fifth term is _______.