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Question
Ten different balls are distributed into 4 distinct boxes such that a specified box contains 2 balls.. Find no of such distribution
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Answer
first select two balls to put in a specific box.
the total selection would be = 10c2=45.
all the other balls have three options available,
so total selection for the remaining 8 balls will be= 3^8.
so total distribution=45*3^8.
