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CBSE
Class 10
Mathematics
Mathematics
Real Numbers

Question Bank

Practice Hub

Question Bank: Real Numbers

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Question Bank - Real Numbers

View all (76)
Q1.

What is the prime factorization of 140?

Single Answer MCQ
Q-00173542
View explanation
Q2.

Which of the following is a composite number?

Single Answer MCQ
Q-00173543
View explanation
Q3.

If a number can be expressed as a product of its prime factors, what is it called?

Single Answer MCQ
Q-00173544
View explanation
Q4.

Which of the following statements is true according to the Fundamental Theorem of Arithmetic?

Single Answer MCQ
Q-00173545
View explanation
Q5.

What is the HCF of 24 and 36 using prime factorization?

Single Answer MCQ
Q-00173546
View explanation
Q6.

What is the prime factorization of 60?

Single Answer MCQ
Q-00173547
View explanation
Q7.

When does a decimal expansion of a rational number terminate?

Single Answer MCQ
Q-00173548
View explanation
Q8.

If a composite number has a prime factorization of 2³ × 3¹ × 5², what is one of its factors?

Single Answer MCQ
Q-00173549
View explanation
Q9.

Which of the following numbers is irrational?

Single Answer MCQ
Q-00173550
View explanation
Q10.

Which of the following numbers is NOT a prime factor of 45?

Single Answer MCQ
Q-00173551
View explanation
Q11.

What is the LCM of 8 and 12?

Single Answer MCQ
Q-00173553
View explanation
Q12.

What is the least common multiple (LCM) of 12 and 15 using their prime factorization?

Single Answer MCQ
Q-00173552
View explanation
Q13.

Given that HCF(18, 24) = 6, find LCM(18, 24).

Single Answer MCQ
Q-00173554
View explanation
Q14.

For which value of n does 6^n end in 0?

Single Answer MCQ
Q-00173555
View explanation
Q15.

How is the prime factorization of 60 represented?

Single Answer MCQ
Q-00173556
View explanation
Q16.

Which pair of numbers has the same prime factors?

Single Answer MCQ
Q-00173557
View explanation
Q17.

What is √75 expressed in simplest form?

Single Answer MCQ
Q-00173558
View explanation
Q18.

Which number cannot be expressed as a product of prime numbers according to the Fundamental Theorem of Arithmetic?

Single Answer MCQ
Q-00173559
View explanation
Q19.

What is the product of HCF and LCM of two numbers equal to?

Single Answer MCQ
Q-00173560
View explanation
Q20.

If the prime factorization of a number is of the form p^a × q^b where p and q are primes, what can be said about it?

Single Answer MCQ
Q-00173561
View explanation
Q21.

If p is a prime factor of n², what can be inferred about n?

Single Answer MCQ
Q-00173563
View explanation
Q22.

Which of the following is true regarding irrational numbers?

Single Answer MCQ
Q-00173562
View explanation
Q23.

Which of the following numbers is irrational?

Single Answer MCQ
Q-00173565
View explanation
Q24.

Which equation demonstrates that √2 is irrational?

Single Answer MCQ
Q-00173564
View explanation
Q25.

Which of the following is a true application of the Fundamental Theorem of Arithmetic?

Single Answer MCQ
Q-00173566
View explanation
Q26.

The number 44 can be factored as 2² × 11. What is one possible composite number formed using these prime factors?

Single Answer MCQ
Q-00173567
View explanation
Q27.

How many distinct prime factors does the number 126 have?

Single Answer MCQ
Q-00173568
View explanation
Q28.

Can a composite number exist with only one prime factor?

Single Answer MCQ
Q-00173569
View explanation
Q29.

What is a real number?

Single Answer MCQ
Q-00173570
View explanation
Q30.

Which of the following is NOT a real number?

Single Answer MCQ
Q-00173571
View explanation
Q31.

Which statement about the Fundamental Theorem of Arithmetic is true?

Single Answer MCQ
Q-00173572
View explanation
Q32.

In the context of Euclid's division algorithm, if a = 17 and b = 5, what is the remainder?

Single Answer MCQ
Q-00173573
View explanation
Q33.

When does the decimal expansion of a rational number terminate?

Single Answer MCQ
Q-00173574
View explanation
Q34.

Which of the following numbers has a non-terminating decimal expansion?

Single Answer MCQ
Q-00173575
View explanation
Q35.

How can you find the HCF of 48 and 180 using Euclid's division algorithm?

Single Answer MCQ
Q-00173576
View explanation
Q36.

The expression √3 is an example of which type of number?

Single Answer MCQ
Q-00173577
View explanation
Q37.

What does the geometric representation of real numbers depict?

Single Answer MCQ
Q-00173578
View explanation
Q38.

Which of the following is true regarding rational numbers?

Single Answer MCQ
Q-00173579
View explanation
Q39.

If p = 12 and q = 18, what is the HCF of p and q?

Single Answer MCQ
Q-00173580
View explanation
Q40.

What does Euclid's Division Algorithm state about two positive integers 'a' and 'b'?

Single Answer MCQ
Q-00173581
View explanation
Q41.

Which of the following numbers is NOT a prime number?

Single Answer MCQ
Q-00173583
View explanation
Q42.

If 50 is divided by 8, what is the remainder according to Euclid's Algorithm?

Single Answer MCQ
Q-00173582
View explanation
Q43.

How does one represent a non-repeating decimal?

Single Answer MCQ
Q-00173585
View explanation
Q44.

Which of the following represents the correct equation based on Euclid's Division Algorithm?

Single Answer MCQ
Q-00173584
View explanation
Q45.

How can Euclid's Division Algorithm be used to find the HCF of two numbers?

Single Answer MCQ
Q-00173586
View explanation
Q46.

What is the decimal equivalent of the fraction 3/8?

Single Answer MCQ
Q-00173587
View explanation
Q47.

Using Euclid's algorithm, what is the HCF of 56 and 98?

Single Answer MCQ
Q-00173588
View explanation
Q48.

What property does Euclid's algorithm demonstrate?

Single Answer MCQ
Q-00173589
View explanation
Q49.

If a = 70 and b = 35, what is the remainder when a is divided by b using Euclid's algorithm?

Single Answer MCQ
Q-00173590
View explanation
Q50.

What is the first prime factor of 60?

Single Answer MCQ
Q-00173591
View explanation
Q51.

If a number is expressed as p/q where q = 10, what is its decimal nature?

Single Answer MCQ
Q-00173592
View explanation
Q52.

What is the main advantage of using Euclid's Division Algorithm?

Single Answer MCQ
Q-00173593
View explanation
Q53.

Which step correctly follows Euclid's Division Algorithm process for finding HCF?

Single Answer MCQ
Q-00173594
View explanation
Q54.

What is the HCF of 24 and 36 using Euclid's Division Algorithm?

Single Answer MCQ
Q-00173595
View explanation
Q55.

In applying Euclid's Division Algorithm to find HCF, which equation is used?

Single Answer MCQ
Q-00173596
View explanation
Q56.

If the remainder when dividing 90 by 11 is 2, what can you conclude using Euclid's Theorem?

Single Answer MCQ
Q-00173597
View explanation
Q57.

Using Euclid's algorithm, what is the HCF of 81 and 27?

Single Answer MCQ
Q-00173598
View explanation
Q58.

For two numbers 144 and 60, what is one of the stages in using Euclid's algorithm?

Single Answer MCQ
Q-00173599
View explanation
Q59.

Using Euclid's algorithm, what is the first remainder when finding the HCF of 54 and 24?

Single Answer MCQ
Q-00173600
View explanation
Q60.

Which of the following numbers is irrational?

Single Answer MCQ
Q-00173601
View explanation
Q61.

What is the value of √2 + √3?

Single Answer MCQ
Q-00173602
View explanation
Q62.

Can √18 be expressed as a simple fraction?

Single Answer MCQ
Q-00173603
View explanation
Q63.

If a rational number is added to √2, what will the result be?

Single Answer MCQ
Q-00173604
View explanation
Q64.

What type of number is √-4?

Single Answer MCQ
Q-00173605
View explanation
Q65.

Which of the following represents an irrational number?

Single Answer MCQ
Q-00173606
View explanation
Q66.

How is √5 categorized?

Single Answer MCQ
Q-00173607
View explanation
Q67.

If a number is both rational and irrational, what can be concluded?

Single Answer MCQ
Q-00173608
View explanation
Q68.

Which statement about irrational numbers is true?

Single Answer MCQ
Q-00173609
View explanation
Q69.

What defines an irrational number?

Single Answer MCQ
Q-00173610
View explanation
Q70.

Which of the following sums results in an irrational number?

Single Answer MCQ
Q-00173611
View explanation
Q71.

Which expression is definitely irrational?

Single Answer MCQ
Q-00173612
View explanation
Q72.

Prove that √3 is irrational using what theorem?

Single Answer MCQ
Q-00173613
View explanation
Q73.

Which statement about squares of irrational numbers is correct?

Single Answer MCQ
Q-00173614
View explanation
Q74.

Is it possible for a rational number and an irrational number to multiply to a rational number?

Single Answer MCQ
Q-00173615
View explanation
Q75.

What can we conclude about the roots of prime numbers?

Single Answer MCQ
Q-00173616
View explanation
Q76.

Confirm the result of √2 + √3. What does it signify?

Single Answer MCQ
Q-00173617
View explanation
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