The decimal expansion of 1/9 is:
A0.11
B0.1
C0.111... (1 repeating)
D0.9
Answer & Solution
Correct answer: C. 0.111... (1 repeating)
1 ÷ 9 = 0.1111... = 0.1̄ (1 repeating). Since 9 = 3² (no 2 or 5 in prime factorisation), the decimal doesn't terminate — it repeats. The single repeating digit is 1.
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