What is the <strong>SMALLEST</strong> natural number from the following which must be subtracted from 9410 to make the remaining number a perfect square?
- A. 4
- B. 3
- C. 2
- D. 1 ✓
Correct Answer: D. 1
Explanation
We know 97^2 = (100-3)^2 = 10000 - 600 + 9 = 9409. Subtracting 1 from 9410 yields 9409, a perfect square.
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