the ratio of boys to girl in a school is 5 : 4 . if there are 1500 boys in the school , how many girls are there ?
think of the ratio as 5 parts : 4 parts . divide 1500 by 5 to find 1 ` ` part ' ' of the ratio . 1500 / 5 = 300 multiply this by 4 to get 4 ` ` parts ' ' of the ratio . 300 * 4 = 1200 there are 1200 girls in the school . the answer is b
multiply(divide(1500, 5), 4)