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If 2n C 3 : n C 3 = 10 : 1, then the ratio (n 2 + 3n) : (n 2 – 3n + 4) is-

1. 35 : 16
2. 27 : 11
3. 65 : 37
4. 2 : 1

Correct answer: 2 : 1

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