SSC CGL 2025 PYQ — Question 74

The correct answer is option 1 i.e. ${3\over8}$.

A fraction in its lowest terms has a terminating decimal representation if and only if its denominator has only prime factors 2 and/or 5.

Denominator of 3/8 = 8 = 2³ → Only prime factor 2 → Terminating

Denominator of 1/6 = 6 = 2 × 3 → Has factor 3 → Non-terminating

Denominator of 2/7 = 7 → Prime factor 7 → Non-terminating

Denominator of 4/9 = 9 = 3² → Prime factor 3 → Non-terminating