At Lincoln Memorial Middle School School are 720 students in a ratio 3:2, boys to girls. How many boys are there? How many girls are there?
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let the ratio constant be x
so, 3x+2x=720
=> 5x =720
=> x = 144.
therefore no. of boys = 3x = 3 *144=432.
no of girls = 2*x = 2*144 = 288
hope it helps
so, 3x+2x=720
=> 5x =720
=> x = 144.
therefore no. of boys = 3x = 3 *144=432.
no of girls = 2*x = 2*144 = 288
hope it helps
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