SOLUTION: A couple has 7 children. If b = boy and g = girl, how many 2-letter string combinations of boys and girls in this family will produce every possible sequence of the number of girl

Question 986422: A couple has 7 children. If b = boy and g = girl, how many 2-letter string combinations of boys and girls in this family will produce every possible sequence of the number of girls and the number of boys? Thank you so much for your help. IT student in Long Beach, California.
Answer by macston(5194) (Show Source): You can put this solution on YOUR website!
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If all that matters is the number of B's and G's, the answer is 8,
0 girls to all 8 girls one at a time.
If order matters:
2 x 2 x 2 x 2 x 2 x 2 x 2=2^7=128
This is the number of all possible 7 place strings with B or G in each place.
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