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Question

In how many ways 8 balls can be distributed among 3 children so that one child gets 4 balls and two children get 2 ball each?

A
210
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B
240
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C
420
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D
1260
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Solution

The correct option is A 1260
Let there be 3 children A,B and C.
Case 1: A gets 4,B and C gets 2 each.
Total no. of ways this can be done =8C4×4C2×2C2
A,B,C can be arranged in 3!2!,
Here that sequence in which each of them receive the ball is important .
Total ways=(8C4×4C2×2C2)3!2!=1260 ways.

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