Section A: Sample/Pre-Board Paper 3 5 Class X Term 1 Exam Nov - Dec 2021 Mathematics (Standard) 041
Section A: Sample/Pre-Board Paper 3 5 Class X Term 1 Exam Nov - Dec 2021 Mathematics (Standard) 041
Section A: Sample/Pre-Board Paper 3 5 Class X Term 1 Exam Nov - Dec 2021 Mathematics (Standard) 041
SECTION A
Section A consists of 20 questions of 1 mark each. Any 16 questions are to be attempted.
1. The sum of exponents of prime factors in the prime- 6. In figure, MN < BC and AM : MB = 1 : 2 , then
factorisation of 196 is ar (TAMN)
= ................... .
ar (TABC)
(a) 3 (b) 4
(c) 5 (d) 2
12. What are the HCF and LCM of 90 and 144 by the (a) 2FC
(b) 2BF
method of prime factorization. BF FC
(c) FC
(d) BF
(a) 36 and 360 (b) 720 and 18 BF FC
14. The value of (1 + tan2 θ) (1 − sin θ) (1 + sin θ) = 20. A girl calculates that the probability of her winning
................... . the first prize in a lottery is 0.08. If 6000 tickets are
(a) 0 (b) 1 sold, then how many tickets has she bought?
(c) 2 (d) 1 (a) 40
2
(b) 240
15. The radius of a circle is 17.5 cm. What is the area of (c) 480
the sector of the circle enclosed by two radii and an (d) 750
SECTION B
Section B consists of 20 questions of 1 mark each. Any 16 questions are to be attempted.
21. A tile floor is to be made from 10 inch, 12 inch, and 15 third row uses only 15 inch tiles. Neglecting the grout
inch square tiles. A design is made by alternating rows seams, what is the shortest length of floor space that
with different size tiles. The first row uses only 10 inch can be covered evenly by each row?
tiles, the second row uses only 12 inch tiles, and the
29. If x − 2y + k = 0 is a median of the triangle whose
vertices are at points A (− 1, 3), B (0, 4) and C (− 5, 2),
then the value of k is
(a) 2 (b) 4
(c) 6 (d) 8
23. If cos θ + cos θ = 4; θ # 90º the value of θ will 31. The points ^a, a h , ^− a, − a h and `− 3 a, 3 a j are
1 − sin θ 1 + sin θ
be the vertices of_____
(a) 30° (b) 45° (a) equilateral triangle
(c) 60° (d) 90° (b) scalene triangle
(c) isosceles triangle
24. If the equations kx − 2y = 3 and 3x + y = 5 represent (d) right angled isosceles triangle
two intersecting lines at unique point, then the value
of k is ........... .
32. sin A is equal to
(a) k = − 6 (b) k !− 6
(a) 1 − sec2 A (b) sec2 A − 1
(c) k = 4 (d) k ! 4
sec2 A − 1
(c) sec A
sec2 A − 1
(d) sec A
(c) 1
5 (d) 1 34. In the given figure, BC | | PQ and BC = 8 cm,
PQ = 4 cm, BA = 6.5 cm AP = 2.8 cm.
The length of CA is
27. A number is chosen at random from the numbers − 5 ,
− 4 , − 3 , − 2 , − 1, 0, 1, 2, 3, 4, 5. Then the probability
that square of this number is less than or equal to 1
is .......... .
(a) 9
11 (b) 3
11
(c) 8
11 (d) 7
11
SECTION C
Case study based questions:
Section C consists of 10 questions of 1 mark each. Any 8 questions are to be attempted.