Question Detail
Question
Which of the following is not an irrational number?
Correct Answer
Option C is the correct answer.
Detailed Explanation
4.6 = 46/10 = 23/5, which is rational. The others are approximations of irrational numbers (√6, π, √10) but as decimals they could be rational if they terminate. However, given they are written as finite decimals, they are rational. But typically 4.6 is clearly rational. The question likely expects 4.6 as the rational one.
Hint
Rational numbers can be expressed as a fraction p/q. Terminating decimals are rational.