2752
1. . If $H C F$ of 35 and 84 is 7 , then find its LCM:
2748
2. The relation between their LCM and HCF, if numbers are positive integer.
2751
3. Which of the following number will be terminating?
2760
4. For some integer $m$, every even integer is of the form
2753
5. The decimal expansion of $\frac{17}{8}$ will be:
2741
6. Express 0.375 in the form $\frac{p}{q}$.
2745
7. Express 15.75 in the form $\frac{p}{q}$.
2762
8. The decimal expansion of the rational number $\frac{7}{5}$ will terminate after:
2750
9. If HCF of 124 and 148 is 4 , then its LCM is:
2764
10. The HCF of 870 and 225 will be:
2761
11. If HCF of 65 and 117 is expressible in the form $65 m-117$, then the value of $m$ is :
2747
12. If $\boldsymbol{a}$ and $\boldsymbol{b}$ are two positive integers, then the relation between their LCM and HCF will be:
2746
13. The relation between HCF and LCM of 12 and 20 will be:
2743
14. Explain 0.0875 in the form $\frac{p}{q}$.
2756
15. The HCF of 36 and 78 will be:
Chapter 1 of Class 10 Maths, Real Numbers, forms the basis of advanced mathematics. Here are the key topics covered in this chapter:
The Fundamental Theorem of Arithmetic states that every composite number can be expressed (factorized) as a product of prime numbers in a unique way, except for the order of primes. For example:
Euclid's Division Lemma states that for any two positive integers a and b, there exist unique integers q and r such that:
a = bq + r, where 0 ≤ r < b
Applications include finding the HCF of two numbers.
Proving that certain numbers, such as \( \sqrt{2} \), \( \sqrt{3} \), and \( \sqrt{5} \), are irrational involves using proof by contradiction and the properties of prime factorization.
Rational numbers have either a terminating or repeating decimal expansion. For example:
Understanding Real Numbers is crucial as it lays the foundation for higher-level mathematical concepts and problem-solving skills. The topics in this chapter are also frequently tested in board exams.
Looking for more practice? Check out these resources: