1.

reen, six identical blue and six identical redIn how many ways it is possible to divide six identical gamong two persons such that each gets equal number of item?

Answer»

THERE ARE TOTAL 18 BALLS(6 GREEN+6 BLUE+6 RED)

THESE BALLS SHOULD BE DISTRIBUTED EQUALLY AMONG TWO PERSONS SO THERE ARE AS MANY NUMBER OF WAYS AS IN WHICH WE CAN DIVIDE THESE BALLS IN TWO EQUAL GROUPS OF 9-9 BALLS.

SO THE REQUIRED ANSWER IS 18!/(9!*9!*2!).

HERE 2! IS BECAUSE TWO GROUPS HAVE SAME SIZE THAT IS 9.


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