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In a club there are 20% more girls than boys. After 50 boys left there were twice as many girls as boys. How many girls were there in the club?
5 years ago

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oobleck
g = 1.2b
g = 2(b-50)
subbing in,
1.2b = 2b-100
0.8b = 100
b = 125
so, g = 1.2 * 125 = 150
5 years ago

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