document.write( "Question 1011044: There are 600 students in a school and the ratio of girls to boys is 1 to 2. If new enrollment increases the number of girls by 25%, what is the proportion of the students in the school will be girls? \n" ); document.write( "
Algebra.Com's Answer #626561 by addingup(3677) You can put this solution on YOUR website! Currently the ratio of girls to boys is 1 to 2. 1+2= 3. This means that out of every 3 students 1 is a girl and 2 are boys. \n" ); document.write( "1/3*600= 200 currently are girls. If we grow this by 25%: 200*1.25= 250 there will be 250 girls. \n" ); document.write( "Now, you don't say if the total population grows or if the increase in girls means a decrease in boys in order to keep the total at 600. \n" ); document.write( "If it grows: The new population will be 650 and 250/650= 38.5% will be girls \n" ); document.write( "If it does not grow, then 250/600= 41.67% will be girls \n" ); document.write( "Ratio if the population grows: 650-250= 400 So 250 will be girls and 400 will be boys (in this case the number of boys has not changed): \n" ); document.write( "250/400 simplify by dividing both sides by 50: 5:8 is your new ratio, 5 girls for every 8 boys. I'm a boy, so I like this better than the previous ratio ;-) \n" ); document.write( " |