Answer:
1
Explanation:
3^5 × 10^5 × 25 ÷ 5^7 × 6^5
= (3^5 × 10^5 × 5^2) ÷ (5^7 × 2^5 × 3^5)
= (3^5 × 2^5 × 5^7) ÷ (5^7 × 2^5 × 3^5)
= 3^5 × 2^5 × 5^7 ÷ 3^5 × 2^5 × 5^7
= 1
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