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How many combinations can be made up of ...

How many combinations can be made up of `3` hens, `4` ducks and `2` geese so that each combination has hens, ducks and geese ?

A

`305`

B

`315`

C

`320`

D

`325`

Text Solution

Verified by Experts

The correct Answer is:
B
`(b)` Selecting atleast one bird of each type `=(2^(3)-1)(2^(4)-1)(2^(2)-1)`
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