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Boys account for 54% of the total number in the first semester of the sixth grade in a school Boys account for 54% of the total number of sixth grade students in the first semester of a school. This semester, there are three girls transferred and three boys transferred. At this time, girls account for 48% of the total number. How many boys are there now? Please use the formula to calculate, not x, Y!
Previous number of female students: 1-54% = 46%
Because there are three girls and three boys, the total number remains unchanged
3 girls transferred: 48% - 46% = 2%
The total number of students in the class is: 3 / 2% = 150
Now there are boys: 150 * (1-48%) = 78
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