When you divide any non-zero number by itself, the result is always 1 — this applies here since 5³ ÷ 5³ is just the same value divided by itself. (Alternatively, using the exponent rule: 5³ ÷ 5³ = 5^(3-3) = 5^0 = 1.) So the correct answer is 1, option (3).
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