# math

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A number of girls form a singing group. All but 3 of the girls are blondes, all but 4 are brunettes, and all but 5 are redheads. How many girls are in the group?

• math -

x = total girls in group
x - 3 = blonds
x - 4 = brunettes
x - 5 = redheads

(x - 3) + (x - 4) + (x - 5) = x
3x - 12 = x
2x = 12
x = 6

1 redhead
2 brunettes
3 blond

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