SOLUTION: There are 35 students in a class and the ration of boys to girls is 3:4. How many boys and girls are there in the class?
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Question 316469: There are 35 students in a class and the ration of boys to girls is 3:4. How many boys and girls are there in the class?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
There are 35 students in a class and the ration of boys to girls is 3:4. How many boys and girls are there in the class?
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3:4 is the same as 3x to 4x where 3x is boys and 4x is girls.
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Equation:
3x+4x = 35
7x = 35
x = 5
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# of boys = 3x = 3*5 = 15
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# of girls = 4x = 4*5 = 20
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Cheers,
Stan H.
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