CBSE 10 Maths Real Number Important Questions 2025

CBSE 10 Maths Real Number Important Questions 2025: The Central Board of Secondary Education (CBSE) has scheduled the CBSE Class 10 Mathematics 2025 examination on March 10, 2025. The exam will be held from 10:30 AM to 1:30 PM. The Chapter 1 of Class 10 Mathematics is Real Numbers. Real Numbers include sub-topics like Euclid’s division lemma, Revisiting rational numbers and their decimal expansions. Interested students can check the CBSE 10 Maths Real Number Important Questions 2025 available here.

Also Read: CBSE 10th Subject Wise Blue Print 2025: Chapter Wise Weightage

CBSE 10 Maths Real Number Important Questions 2025

Check the CBSE Class 10 Maths Real Number Important Questions 2025 available below.

1. Find the total number of factors of prime numbers.
   Answer: the total number of factors of a prime number is 2.
   
   
2. Find the sum of the exponents of prime factors in the prime factorization of 196.
   Answer: 4

3. If two positive integers a and b are written as $a=x^3{y}^2$ and $b=x{y}^3;x,y$ are prime numbers, then LCM (a, b) is
   Answer: x3y3

4. LCM of 2 numbers is 2400. Which of the following can not be HCF?
   Answer: 500
   
   
5. The LCM of two numbers is 14 times their HCF. The sum of LCM and HCF is 750. If one number is 250, then find the other number.
   Answer: the other number is 140.
   
   
6. On a morning walk, three men step off together and their steps measure 54 cm, 60 cm and 48 cm, respectively. What is the minimum distance each should walk so that each can cover the same distance in complete steps?
   Answer: 21m 60cm
   
   
7. The decimal expansion of the rational number 43/2^4 X 5^3  will terminate after how many places of decimals?
   Answer: After 4 decimal places
   
   
8. Find the largest number to divide 398, 436 and 542, leaving remainders 7, 11, and 15 respectively.
   Answer: HCF of 391, 425, 527 = 17
   
   
9. If the HCF of 408 and 1032 is expressible in the form 1032 × 2 + 408 × p, then find the value of p.
   Answer: p= -5
10. HCF and LCM of two numbers is 9 and 459 respectively. If one of the numbers is 27, find the other number.
    Answer: The other number is 153
    
    
11. Find the LCM of 96 and 360 by using the fundamental theorem of arithmetic.
    Answer: 1440
    
    
12. Find the HCF (865, 255) using Euclid’s division lemma.
    Answer: HCF=5

The above given CBSE 10 Maths Real Number Important Questions 2025 have appeared previously in the CBSE Class 10 Examinations. Students are advised to go through the entire chapter for more questions.