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The number of ways to distribute 30 identical candies among four children C 1 , C 2 , C 3 and C 4 so that C 2 receives atleast 4 and atmost 7 candies, C 3 receives atleast 2 and atmost 6 candies, is equal to:

1. 205
2. 615
3. 510
4. 430

Correct answer: 430

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