1. All questions are compulsory.
2. The question paper consists of 30 questions divided into four sections – A, B, C and D. Section A comprises of ten questions of 1 mark each, Section B comprises of five questions of 2marks each, Section C comprises of ten questions of 3 marks each and Section D comprises of five questions of 6marks each.
3. All questions in Section A are to be answered in one word, one sentence or as per the exact requirement of the question.
There is no overall choice. However, an internal choice has been provided in one question of 2 marks each, three questions of 3 marks each and two questions of 6 marks each. You have to attempt only one of the alternatives in all such questions.
4. In question on construction, the drawing should be neat and as per the given measurements.
5. Use of calculators is not permitted.
 Q1
 Q2
Find the number of solutions of the following pair of linear equations:
x + 2y − 8 = 0
2x + 4y = 16
VIEW SOLUTION  Q3
 Q4
Two coins are tossed simultaneously. Find the probability of getting exactly one head.
VIEW SOLUTION  Q5
 Q6
 Q7
If 1 is a zero of the polynomial p(x) = ax^{2} − 3(a − 1) x − 1, then find the value of a.
VIEW SOLUTION  Q8
 Q9
 Q10
 Q11
Find all the zeroes of the polynomial 2x^{3} + x^{2} − 6x − 3, if two of its zeroes are and.
VIEW SOLUTION  Q12
 Q13
If the points A (4, 3) and B (x, 5) are on the circle with the centre O (2, 3), find the value of x.
VIEW SOLUTION  Q14
 Q15
In Figure 2, ΔABD is a right triangle, rightangled at A and AC ⊥ BD. Prove that AB^{2} = BC . BD.
VIEW SOLUTION  Q16
 Q17
In Figure, 3, AD ⊥ BC and BD CD. Prove that 2CA^{2} = 2AB^{2} + BC^{2}.
OR
In Figure 4, M is midpoint of side CD of a parallelogram ABCD. The line BM is drawn intersecting AC at L and AD produced at E. Prove that EL = 2 BL.
VIEW SOLUTION  Q18
The area of an equilateral triangle is cm^{2}. Taking each angular point as centre, circles are drawn with radius equal to half the length of the side of the triangle. Find the area of triangle not included in the circles. [Take= 1.73]
OR
Figure 5 shows a decorative block which is made of two solids − a cube and a hemisphere. The base of the block is a cube with edge 5 cm and the hemisphere, fixed on the top, has a diameter of 4.2 cm. Find the total surface area of the block. [Take π =]
 Q19
Two dice are thrown simultaneously. What is the probability that
(i) 5 will not come up on either of them?
(ii) 5 will come up on at least one?
(iii) 5 will come up at both dice?
VIEW SOLUTION  Q20
The sum of first six terms of an arithmetic progression is 42. The ratio of its 10^{th} term to its 30^{th} term is 1 : 3. Calculate the first and the thirteenth term of the A.P.
VIEW SOLUTION  Q21
 Q22
Find the ratio in which the point (x, 2) divides the line segment joining the points (−3, −4) and (3, 5). Also find the value of x.
VIEW SOLUTION  Q23
Find the area of the triangle formed by joining the midpoints of the sides of the triangle whose vertices are (0, − 1), (2, 1) and (0, 3).
VIEW SOLUTION  Q24
Solve for x and y:
ax − by = 2ab
OR
The sum of two numbers is 8. Determine the numbers if the sum of their reciprocals is
VIEW SOLUTION  Q25
Draw a right triangle in which sides (other than hypotenuse) are of lengths 8 cm and 6 cm. Then construct another triangle whose sides are times the corresponding sides of the first triangle.
VIEW SOLUTION  Q26
A juice seller serves his customers using a glass as shown in Figure 6. The inner diameter of the cylindrical glass is 5 cm, but the bottom of the glass has a hemispherical portion raised which reduces the capacity of the glass. If the height of the glass is 10 cm, find the apparent capacity of the glass and its actual capacity. (Use π = 3.14)
OR
A cylindrical vessel with internal diameter 10 cm and height 10.5 cm is full of water. A solid cone of base diameter 7 cm and height 6 cm is completely immersed in water. Find the volume of
(i) water displaced out of the cylindrical vessel.
(ii) water left in the cylindrical vessel.
[Take π ]
VIEW SOLUTION  Q27
In a triangle, if the square of one side is equal to the sum of the squares of the other two sides, prove that the angle opposite to the first side is a right angle.
Use the above theorem to find the measure of ∠PKR in the below figure.
VIEW SOLUTION  Q28
From the top of a building 60 m high, the angles of depression of the top and bottom of a vertical lamp post are observed to be 30° and 60° respectively. Find
(i) the horizontal distance between the building and the lamp post
(ii) The height of the lamp post.
[Take ]
VIEW SOLUTION  Q29
During the medical checkup of 35 students of a class their weights were recorded as follows:

Weight (in kg)
Number of students
38 − 40
3
40 − 42
2
42 − 44
4
44 − 46
5
46 − 48
14
48 − 50
4
50 − 52
3
Draw a less than type and a more than type ogive from the given data. Hence obtain the median weight from the graph.
VIEW SOLUTION 
 Q30
Solve the following equation for x:
9x^{2} − 9(a + b)x + (2a^{2} + 5ab + 2b^{2}) = 0
OR
If (−5) is a root of the quadratic equation 2x^{2} + px − 15 = 0 and the quadratic equation p(x^{2} + x) + k = 0 has equal roots, then find the values of p and k.
VIEW SOLUTION
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Class X: Math, Board Paper 2009, Set2