Question

If there are 2 kinds of balls red and black and at least 4 of each kind, the number of ways a ball can be put in each of 4 different boxes is

Answer 1

Answer is 10

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Answer 2

Answer : 8

Step-by-step explanation:

step 1: given two different kind of ball i.e red and black .

step 2 : given at least 4 of each kind ,so there are 4 or more than 4 balck and red balls from each kind ,let say 1000 red and 1000 black balls

step 3: the number of way "a ball" can be put in 4 different box. i.e we have to arange one ball only.

step 4 : for one ball say one red ball there are 4 ways to be in a box , but a ball can be either black or red

so total number of ways = 4 + 4 = 8 .