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Mathematics MCQs Set-5

Review each question and reveal answers to strengthen your understanding

1 Which of the following type of numbers are closed under only multiplication?
✅ Correct Answer: 3
2 By using the properties of rational numbers solve the following equation (8 + 0) + (6 * 3).
✅ Correct Answer: 1
3 Between any consecutive two integers, there are always infinite integers.
✅ Correct Answer: 2
4 The maximum number of integers between two consecutive natural numbers is ________
✅ Correct Answer: 4
5 [….., -1, 0, 1, …….] the given set shows which type of numbers?
✅ Correct Answer: 2
6 An irrational number has ________
✅ Correct Answer: 3
7 The product of a rational and an irrational number is rational number.
✅ Correct Answer: 2
8 The product of two irrational numbers is an irrational number.
✅ Correct Answer: 2
9 The sum of two rational numbers is a rational number.
✅ Correct Answer: 2
10 The sum of two irrational numbers is a rational number.
✅ Correct Answer: 1
11 Irrational numbers are denoted by _______
✅ Correct Answer: 4
12 Real numbers are denoted by which letter?
✅ Correct Answer: 1
13 All irrational numbers are real numbers.
✅ Correct Answer: 1
14 How many real numbers are there between 3 and 8 (Including 3 and 8)?
✅ Correct Answer: 3
15 Every point on the number line represents a unique real number.
✅ Correct Answer: 1
16 Which of the following option is correct according to the below statements? i) Every rational number is real number. ii) Every real number is rational number.
✅ Correct Answer: 2
17 Summation or Subtraction of two non-zero rational numbers is a/an __________
✅ Correct Answer: 3
18 If we multiply or divide two rational numbers, we get a/an __________
✅ Correct Answer: 3
19 If we add or subtract an irrational number and a rational number (non-zero), then we get a/an __________ number.
✅ Correct Answer: 3
20 If we add or subtract two irrational numbers, we get __________ number.
✅ Correct Answer: 4
21 3 + 2–√ is a/an __________ number.
✅ Correct Answer: 2
22 π – π is __________ number.
✅ Correct Answer: 3
23 By simplifying (7–√+5–√)∗(7–√−5–√), we get __________
✅ Correct Answer: 2
24 By simplifying (3–√+2–√)∗(3–√+2–√), we get __________
✅ Correct Answer: 2
25 Summation or Subtraction of rational number and irrational number is always a/an __________ number.
✅ Correct Answer: 4
26 Which of the following is Natural number?
✅ Correct Answer: 2
27 Integer numbers set is denoted by which letter?
✅ Correct Answer: 4
28 Find the incorrect option (Assume conventional notations).
✅ Correct Answer: 1
29 Zero is a rational number.
✅ Correct Answer: 2
30 There are _________ rational numbers between 2 and 3.
✅ Correct Answer: 3
31 Which of the following option is true based on the below statements? i) All integers are rational numbers. ii) All rational numbers are integers.
✅ Correct Answer: 2
32 Which of the following is not rational number?
✅ Correct Answer: 4
33 How many whole numbers are there between -3 and 3 (Including -3 and 3)?
✅ Correct Answer: 1
34 N is subset of W, Z and Q. (Assume conventional notations)
✅ Correct Answer: 1
35 A sequence in which each term differs from its preceding term by a constant is called arithmetic progression.
✅ Correct Answer: 1
36 If we add the terms of an AP, then we get a corresponding series.
✅ Correct Answer: 1
37 Sequences which follow a definite pattern called progressions.
✅ Correct Answer: 1
38 If the first term of an AP is a and its common difference is d then the nth term is given by Tn = a + (n – 1)d
✅ Correct Answer: 1
39 Which term of the AP 2, 11, 20, 29…… is 290?
✅ Correct Answer: 4
40 How many terms are there in the AP 9, 16, 23, 30……………282?
✅ Correct Answer: 3
41 The middle term of the AP 11, 8, 5, … , -79 will be?
✅ Correct Answer: 2
42 Which term of the AP 80, 76, 72, 68……. is the first negative term?
✅ Correct Answer: 1
43 The sum of three numbers is 30 and their product 750. What are the three numbers?
✅ Correct Answer: 3
44 Four numbers whose sum is 40 and sum of their squares is 480. What are the four numbers?
✅ Correct Answer: 2
45 The sum of 5 numbers in AP is 10 and their product is 80. What are the five numbers?
✅ Correct Answer: 1
46 The sum of first 20 terms of the AP 10, 12, 14, 16, 18…. is _________
✅ Correct Answer: 2
47 The sum of 50 + 100 + 150 + 200 + …….. + 1000 is _________
✅ Correct Answer: 3
48 What will be the sum of all 3-digit even positive numbers?
✅ Correct Answer: 1
49 The sum of all 2 – digit numbers divisible by 19 will be __________
✅ Correct Answer: 3
50 What will be the sum of all natural numbers lying between 500 and 5000, which are divisible by 17?
✅ Correct Answer: 2
51 If the sum of first n terms of an AP is given by Sn = 4n2 + 6, then its first term will be _________
✅ Correct Answer: 1
52 How many terms of the AP 5,10,15,20….. must be added to get a sum of 330?
✅ Correct Answer: 4
53 The sum of the first 10 terms of an AP is the same as the sum of its first 5 terms, then the sum of its 15th term will be _______
✅ Correct Answer: 2
54 The sum of the first 12 terms of an AP is 15 and the sum of its first 15 terms is 12, then the sum of its first 27 terms will be __________
✅ Correct Answer: 4
55 If set A={1,2,3,4} and B={3,4,5,6}. Find A-B.
✅ Correct Answer: 3
56 If set A = {1,2,3,4} and B = {3,4,5,6}. Find B-A.
✅ Correct Answer: 4
57 Does A-B=B-A always correct?
✅ Correct Answer: 2
58 If A-B=B-A then A and B are ____________
✅ Correct Answer: 2
59 A – B, A ∩ B and B – A are mutually disjoint sets or not.
✅ Correct Answer: 1
60 If R is the set of real numbers and S is the set of rational numbers, then what is R – S?
✅ Correct Answer: 3
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