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The square root of 4761 (by long division) is:
A{'text': '67'}
B{'text': '68'}
C{'text': '71'}
D{'text': '69'}
Answer & Solution
Correct answer: D. {'text': '69'}
1. Pair the digits from the right: 47|61.
2. Largest square ≤ 47 is 36 = 6²; first digit of root is 6, remainder 11.
3. Bring down 61 to get 1161; double the partial root 6 to get 12.
4. Find x with (12x) × x ≤ 1161: try 9 → 129 × 9 = 1161 ✓ (exact).
5. So √4761 = 69.
_Source: Selina Concise ICSE Class 8 Mathematics Ch 3 "Squares and Square Roots", Long division method_
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