Question 1187562
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Given the ratio of 3 boys to every 4 girls,...<br>
Let 3x = # of boys
Let 4x = # of girls<br>
That is nearly always the best way to start on a problem like this where a ratio is given.<br>
The total number of preschoolers is 245:<br>
3x+4x=245
7x=245
x=245/7=35<br>
ANSWER: The number of boys is 3x = 3(35) = 105<br>