Question 254747: If a group consisting of A,B,C,D,E,F and G students are asked to group themselves by two, how many of these includes the A students?
Answer by palanisamy(496) (Show Source):
You can put this solution on YOUR website! Given A,B,C,D,E,F,and G
Out of seven students we have to choose two such that A is always included.
First selectA.
This can be done in only one way.
Then from the remaining 6 students one can be selected in 6 ways.
Total number of ways = 1*6 = 6
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