2018 Question Paper Solution | Question 2
CBSE Class 10 Maths | 1 Mark Questions | Section A | Real Numbers
Class 10 Maths Questions This is an easy 1-mark question from the chapter Real Numbers. Concept tested: Basic knowledge of prime numbers and composite numbers and method to compute HCF of two simple numbers.
Question 2: What is the HCF of smallest prime number and the smallest composite number?
Target Centum in CBSE 10th Maths
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NCERT Solution to Class 10 Maths
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Explanatory Answer | Q2 2018 Board Paper
Smallest prime number is 2.
Smallest composite number is 4.
HCF(2, 4) = 2.
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CBSE Online Coaching | Previous Year Question Paper Class 10 Maths 2018 Video Solution
1. Section A | 2018 CBSE Class 10 Maths 1 Mark Questions 1 to 6
2. Section B | 2018 CBSE Class 10 Maths 2 Mark Question 7 | Real Numbers - Irrational Numbers
3. Section B | 2018 CBSE Class 10 Maths 2 Mark Question 8 | Linear Equations in 2 variables
4. Section B | 2018 CBSE Class 10 Maths 2 Mark Question 9 | Sum of Arithmetic Progressions
5. Section B | 2018 CBSE Class 10 Maths 2 Mark Question 10 | Coordinate Geometry Section Formula
6. Section B | 2018 CBSE Class 10 Maths 2 Mark Question 11 | Probability of Rolling 2 dice
7. Section B | 2018 CBSE Class 10 Maths 2 Mark Question 12 | Probability of selecting numbers
8. Section C | 2018 CBSE Class 10 Maths 3 Mark Question 13 | Real Numbers - LCM & HCF
9. Section C | 2018 CBSE Class 10 Maths 3 Mark Question 14 | Polynomial Factorization
10. Section C | 2018 CBSE Class 10 Maths 3 Mark Question 15A | Coordinate Geometry - Parallelogram
11. Section C | 2018 CBSE Class 10 Maths 3 Mark Question 15B | Coordinate Geometry - Area of Triangles
12. Section C | 2018 CBSE Class 10 Maths 3 Mark Question 16 | Quadratic Equations - Speed Time Distance
13. Section C | 2018 CBSE Class 10 Maths 3 Mark Question 17 | Similar & Congruent Triangles
14. Section C | 2018 CBSE Class 10 Maths 3 Mark Question 19 | Trigonometric Ratios
15. Section C | 2018 CBSE Class 10 Maths 3 Mark Question 20 | Areas related to circles - sector area
16. Section C | 2018 CBSE Class 10 Maths 3 Mark Question 21 | Surface Areas & Volumes - Cylinder, hemisphere and cone
17. Section C | 2018 CBSE Class 10 Maths 3 Mark Question 22 | Statistics - Median
18. Section D | 2018 CBSE Class 10 Maths 4 Mark Question 23 | Quadratic Equations _ Speed Distance Time
19. Section D | 2018 CBSE Class 10 Maths 4 Mark Question 24 | Arithmetic Progressions
20. Section D | 2018 CBSE Class 10 Maths 4 Mark Question 25A | Equilateral & Right Triangles and Congruence
21. Section D | 2018 CBSE Class 10 Maths 4 Mark Question 25B | Pythagoram Theorem Proof
22. Section D | 2018 CBSE Class 10 Maths 4 Mark Question 27 | Trigonometric Ratios & Identities
23. Section D | 2018 CBSE Class 10 Maths 4 Mark Question 28 | Surface Area of Frustum
24. Section D | 2018 CBSE Class 10 Maths 4 Mark Question 29 | Applications of Trigonometry - Heights & Distances
25. Section D | 2018 CBSE Class 10 Maths 4 Mark Question 30 | Statistics - 2 Alternatives
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