# CBSE Class 11 Maths Term 1 MCQs For Practice

No. of Questions: 15

Time: 30 minutes

Chapters: Sets, Relations and Functions, Complex Numbers, Sequence and Series, Straight Lines, Limits and Statistics

Q1: The set {1, 2, 3, ...} is _______ set. Fill in the blank.

(a) null

(b) finite

(c) infinite

(d) singleton

Q2: In a group of 52 persons, 16 drink tea but not coffee and 33 drink tea. Find how many drink tea and coffee both?

(a) 17

(b) 19

(c) 33

(d) 52

Q3: If a relation R is defined on the set Z of integers as follows

(a,b) ∈ R ⇔ a² +b² =25, then domain (R) is equal to

(a) {3,4,5}

(b) {0, 3,4,5}

(c) {0, ±3, ±4, ±5}

(d) None of these

Q4: If n(A) = p, n(B) = q, then n[A × B] is:

(a) $2^{p+q}$

(b) $2^{p-q}$

(c) $2^{p/q}$

(d) $2^{pq}$

Q5: The modulus of the complex number 4 + 3i⁷ is equal to

(a) −5

(b) 5

(c) 2

(d) 3

Q6: Z is a complex number and is purely imaginary; then, it lies on which axis?

(a) x-axis

(b) y-axis

(c) either x-axis or y-axis

(d) none of these

Q7: If tₓ denotes the xth term of the series 2 + 3 + 6 + 11 + 18 +..., then t₅₀ is

(a) 49² − 1

(b) 49²

(c) 50² + 1

(d) 49² + 2

Q8: If the third term of GP is 4, then the product of its first 5 terms is

(a) 4³

(b) 4⁴

(c) 4⁵

(d) None of these

Q9: The sum of three consecutive terms of an AP is 15, and their product is 105, then the common difference is

(a) ±1

(b) ±2

(c) ±3

(d) ±4

Q10: If the vertices of a triangle are P (1, 3), Q (2, 5) and R(3, − 5), then the centroid of a ∆PQR is

(a) (1, 2)

(b) (3, 1)

(c) (2, 1)

(d) (1, 3)

Q11: The slope of the line passing through the points (4,−3)and(6,−3) is?

(a) 0

(b) 3

(c) -3

(d) 6

Q12: The value of $\lim_{x \to 1} \frac{(\sqrt{x}-1)(2x -3)}{2x^2 + x -3}$ is equal to

(a) $\frac{1}{10}$

(b) $-\frac{1}{10}$

(c) 1

(d) None of these

Q13: The value of $\lim_{x \to 0} \frac{tan x^{\circ}}{x^{\circ}}$ is equal to

(a) 1

(b) 3

(c) 2

(d) -1

Q14: 6,7,10,12,13,4,8,12

The variance for the given data is

(a) 8.25

(b) 9.25

(c) 10.5

(d) 8.9

Q15: The mean deviation about the mean for 3, 8, 4, 10, 6, 2 is:

(a) 3

(b) 2

(c) 25

(d) 35

1: (c) infinite

2: (a) 17

3: (c) {0, ±3, ±4, ±5}

4: (d) $2^{pq}$

5: (b) 5

6: (b) y-axis

7: (d) 49² + 2

8: (c) 4⁵

9: (b) ±2

10: (c) (2, 1)

11: (a) 0

12: (b) $-\frac{1}{10}$

13: (a) 1

14: (b) 9.25

15: (c) 25