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Question

How many ways 10 identical chocolates can be distributed to three people?


A

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B

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C

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D

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Solution

The correct option is D


Let the number of chocolates person be A, B and C get,

A + B + C = 10

10 chocolates are to be distributed to 3 persons.

To distribute the 10 chocolates to 3 persons, we can do it by making 2 partitions so that 3 groups are formed as shown.

For example, by the above partition, we mean 1st person gets 2 chocolates, 2nd person gets 4 chocolates and 3rd person gets 4 chocolates.

Similarly, other partitions are also possible.

So, distribution of 10 chocolates, essentially means to select the places for 2 partitions (each look like I), in a group of 10 chocolates and 2 I's

In other words, we have to select places for 2 I's out of 12 places.

This can be done is 10+31C31= 12C2 ways.


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