CBSE Class 10 Real Numbers — practice questions
26 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.
Practice CBSE Class 10 Real Numbers in the app →Euclid's division lemma states that for positive integers a and b, there exist unique q and r such that:For any two positive integers, HCF × LCM equals:The number √2 is:A rational number p/q (in lowest terms) has a terminating decimal expansion if the prime factors of q are:The HCF of 6 and 20 is:The LCM of 6 and 20 is:The product of the HCF and LCM of 6 and 20 is:The decimal expansion of 1/3 is:The decimal expansion of 7/8 is:The number of prime numbers is:The prime factorisation of 156 is:The sum √3 + √5 is:The Fundamental Theorem of Arithmetic states that every composite number can be expressed as:Which of the following numbers is prime?The prime factorisation of 360 is:The Fundamental Theorem of Arithmetic guarantees that:Find the HCF of 24 and 36.Find the LCM of 12 and 18.If HCF(a, b) = 9 and a · b = 1620, find LCM(a, b).Two bells ring at intervals of 9 and 15 minutes. They ring together at noon. When do they ring together again?Which of the following is an irrational number?Will the decimal expansion of 13/125 terminate?The decimal expansion of 1/6 is:Which of the following will have a terminating decimal expansion?Numbers that fill the number line completely (every point on the line corresponds to such a number) are calledIf p is prime and p divides a², then p divides a. This step is used to prove which number irrational in NCERT?