REAL NUMBERS Leave a Comment / Maths Quizes / By ADMIN 123456789101112131415161718 CLASS 10 MATHS 2025-26 REAL NUMBERS CLASSVI:VIIviiiIXXXIXII 1 / 18 Category: Uncategorized 1. Which of the following is not an irrational number A) pi B) e C) golden ratio D) 22/7 2 / 18 Category: Uncategorized 2. which of the following is a non-terminating recurring A) 13/64 B) -71/125 C) 43/375 D) 31/400 3 / 18 Category: Uncategorized 3. GCD(−12, -30) = ? A) 6 B) -6 C) 3 D) 2 4 / 18 Category: Uncategorized 4. If a | b c, with GCD(a, b) = 1, then A) a|c B) c|a C) a|b D) b|a 5 / 18 Category: Class 10 Mathematics 5. The product of a non-zero rational and an irrational number is: A) Always irrational. B) Always rational C) Rational or irrational D) One. 6 / 18 Category: Class 10 Mathematics 6. The sum of the exponents of the prime factors in the prime factorisation of 196, is: A) 1 B) 2 C) 4 D) 6 7 / 18 Category: Class 10 Mathematics 7. The least number that is divisible by all the numbers from 1 to 10 (both inclusive) is: A) 10 B) 100 C) 504 D) 2520 8 / 18 Category: Class 10 Mathematics 8. If p and q are co-prime numbers, then p^2 and q^{2} are: A) Co-prime. B) Not co-prime C) Even. D) Odd. 9 / 18 Category: Class 10 Mathematics 9. The LCM and HCF of two rational numbers are equal, then the numbers must be: A) Prime B) Co-prime C) Composite D) Equal 10 / 18 Category: Class 10 Mathematics 10. If HCF (26, 169) = 13, then LCM (26, 169) = A) 26 B) 52 C) 338 D) 13 11 / 18 Category: Class 10 Mathematics 11. The LCM of two numbers is 1200. Which of the following cannot be their HCF? A) 600 B) 500 C) 200 D) 400 12 / 18 Category: Class 10 Mathematics 12. If the LCM of a and 18 is 36 and the HCF of a and 18 is 2, then a = A) 2 B) 3 C) 4 D) 1 13 / 18 Category: Class 10 Mathematics 13. If 3 is the least prime factor of number a and 7 is the least prime factor of number b, then the least prime factor of a + b, A) 2 B) 3 C) 5 D) 10 14 / 18 Category: Misc. quiz 14. Which one of the following can’t be the square of a natural number? A) 42437 B) 20164 C) 81225 D) 32761 15 / 18 Category: CLASS X MATHS MCQ 15. The product of the exponents of the prime factors in the prime factorisation of 196 is : A) 1 B) 2 C) 4 D) 6 16 / 18 Category: X-MATHS-PAQ 16. The greatest number which divides 281 and 1249, leaving remainder 5 and 7 respectively, is : A) 23 B) 276 C) 138 D) 69 17 / 18 Category: X-MATHS-PAQ 17. If the product of two co-prime numbers is 553, then their HCF is : A) 1 B) 553 C) 7 D) 79 18 / 18 Category: X-MATHS-PAQ 18. Assertion (A) : The number 5^n cannot end with the digit 0, where n is a natural number. Reason (R): Prime factorisation of 5 has only two factors, 1 and 5. A) Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of the Assertion (A). B) Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of the Assertion (A). C) Assertion (A) is true, but Reason (R) is false. D) Assertion (A) is false, but Reason (R) is true Q 20 2023 M-S Your score is Facebook Twitter Restart quiz
