What are the important questions and examples in NCERT maths in class 10 for term 1?
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Answers
Answer:
CBSE Class 10, Math, Important Questions
Areas related to Cirles.
Arithmetic Progression.
Circles.
Constructions.
Coordinate Geometry.
Introduction to Trigonometry.
Linear Equations in two variables.
Polynomials. etc
Chapter 3 - Pair of Linear Equations in Two Variables = 8 Marks.
Chapter 5 – Arithmetic Progression = 5 Marks.
Chapter 6 – Triangles = 9 Marks.
Chapter 7 – Coordinate Geometry = 6 Marks.
Chapter 8 – Introduction to Trigonometry = 6 Marks.
Which chapter is hardest in class 10 maths?
A chapter that most of the students find difficult in maths is trigonometry. But with enough practice you will be able to solve any question easily. If you understand the concept, trigonometry will be really interesting.
Explanation:
Answer:
1. What is the minimum number of books you will acquire for the class library, so that they can be distributed equally among students of Section A or Section B?
a) 144
b) 128
c) 288
d) 272
Answer: c) 288
2. If the product of two positive integers is equal to the product of their HCF and LCM is true then, the HCF (32 , 36) is
a) 2
b) 4
c) 6
d) 8
Answer: b) 4
3. 36 can be expressed as a product of its primes as
a) 22 × 32
b) 21 × 33
c) 23 × 31
d) 20 × 30
Answer: a) 22 × 32
4. 7 × 11 × 13 × 15 + 15 is a
a) Prime number
b) Composite number
c) Neither prime nor composite
d) None of the above
Answer: b) Composite number
5. If p and q are positive integers such that p = ab2 and q= a2b, where a , b are prime numbers, then the LCM (p, q) is
a) ab
b) a2b2
c) a3b2
d) a3b3
Answer: b) a2b2
CASE STUDY 2:
A seminar is being conducted by an Educational Organisation, where the participants will be educators of different subjects. The number of participants in Hindi, English and Mathematics are 60, 84 and 108 respectively.
1. In each room the same number of participants are to be seated and all of them being in the same subject, hence maximum number participants that can accommodated in each room are
a) 14
b) 12
c) 16
d) 18
Answer: b) 12
2. What is the minimum number of rooms required during the event?
a) 11
b) 31
c) 41
d) 21
Answer: d) 21
3. The LCM of 60, 84 and 108 is
a) 3780
b) 3680
c) 4780
d) 4680
Answer: a) 3780
4. The product of HCF and LCM of 60,84 and 108 is
a) 55360
b) 35360
c) 45500
d) 45360
Answer: d) 45360
5. 108 can be expressed as a product of its primes as
a) 23 × 32
b) 23 × 33
c) 22 × 32
d) 22 × 33
Answer: d) 22 × 33
CASE STUDY 3:
A Mathematics Exhibition is being conducted in your School and one of your friends is making a model of a factor tree. He has some difficulty and asks for your help in completing a quiz for the audience.
jagran josh
Observe the following factor tree and answer the following:
1. What will be the value of x?
a) 15005
b) 13915
c) 56920
d) 17429
Answer: b) 13915
2. What will be the value of y?
a) 23
b) 22
c) 11
d) 19
Answer: c) 11
3. What will be the value of z?
a) 22
b) 23
c) 17
d) 19
Answer: b) 23
4. According to Fundamental Theorem of Arithmetic 13915 is a
a) Composite number
b) Prime number
c) Neither prime nor composite
d) Even number
Answer: a) Composite number
5. The prime factorisation of 13915 is
a) 5 × 113 × 132
b) 5 × 113 × 232
c) 5 × 112 × 23
d) 5 × 112 × 132
Answer: c) 5 × 112 × 23