Adaptive Practice
Real Numbers
10 questions • Earn up to 104 XP • First attempt — go for 100%!
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Question 1 of 10
⏱ 0:30
Easy
Which of the following is a rational number?
Easy
If the decimal expansion of a number terminates, then the number is always:
Easy
Find the decimal representation of 7/20.
Medium
Which of the following is an irrational number?
Easy
The number 0.333... (repeating) is equal to:
Medium
Which of the following statements is true?
Hard
If p and q are prime numbers such that √(p/q) is rational, then which of the following must be true?
Medium
Find the product of the LCM and HCF of 12 and 18.
Medium
Which of the following is the correct decimal expansion of 1/7?
Hard
Prove that √5 is irrational by contradiction using the prime factorization method.