anonymous
  • anonymous
there are 30 students in a class, the ratio for boys and girls are 3:8, how many girls are there??
Mathematics
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SOLVED
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jamiebookeater
  • jamiebookeater
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dumbcow
  • dumbcow
8/11 = x/30 cross multiply
myininaya
  • myininaya
or... b=boys g=girls b+g=30 and b/g=3/8 assuming its boys to girls and not girls to boys you have two equations and two unknowns have fun!
anonymous
  • anonymous
what? this makes no sense lol there are decimals in the answers! haha

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myininaya
  • myininaya
i know i see this you have 240/11 girls lol
anonymous
  • anonymous
don't you think something is wrong with the data in the question? 30 is NOT divisible by 11
anonymous
  • anonymous
all i know is i wish my classes had a boy to girl ratio of 3:8 *wink*
anonymous
  • anonymous
correct the question to something like "the ratio of boys and girls IS 3:7" then you would get an answer.
anonymous
  • anonymous
240/11 girls....1 girl is a midget...she counts as 0.818 of a girl...therefore, 21 normal girls, 1 midget girl, 8 boys....problem solved. =D
myininaya
  • myininaya
there would be a midget boy who counts .1818
myininaya
  • myininaya
girls are worthed more than boys lol

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