Which of the following numbers is both a Rational Number and a Terminating Decimal?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. .
A terminating decimal means the decimal representation ends (does not repeat infinitely), which happens when the fraction in lowest terms has a denominator with only prime factors 2 and 5.
Option 1: 1/3 → denominator 3 → repeating decimal (0.333…), not terminating
Option 2: 4/5 → denominator 5 → terminates (0.8), and it’s rational
Option 3: √3 → irrational, not terminating
Option 4: π → irrational, not terminating