Asked by Anonymous
In a class, 2/7 of the number of boys is equal to 4/5 of the number of girls. If there are 18 more boys than girls, how many boys are there in the class?
Answers
Answered by
oobleck
2/7 b = 4/5 g
g = 2/7 b * 5/4 = 5/14 b
b = g+18
b = 5/14 b + 18
9/14 b = 18
b = 28
g = 2/7 b * 5/4 = 5/14 b
b = g+18
b = 5/14 b + 18
9/14 b = 18
b = 28
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