SOLUTION: the ratio of boys to girls in middle school is 2:3. If there are 150 girls, what is the total number of students in the school?

Algebra ->  Percentage-and-ratio-word-problems -> SOLUTION: the ratio of boys to girls in middle school is 2:3. If there are 150 girls, what is the total number of students in the school?      Log On


   

Question 892180: the ratio of boys to girls in middle school is 2:3. If there are 150 girls, what is the total number of students in the school?
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
Let +x+ = the number of boys in the school
+2%2F3+=+x%2F150+
Multiply both sides by +150+
+50%2A2+=+x+
+x+=+100+
There are 100 boys and 150 girls, so
+100+%2B+150+=+250+
There are 250 students in the school
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