In a college of 405 students the ratio between the number of boys and girls is 7 :2. If the number of girls is raised by 50 and the ratio of boys and girls comes to be 3:1 then find the increase in the number of boys.
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in a college student girls is 7.7 x 2 X the number of girls is raised by 50 and the ratio of boy and girls to be 3x and One X then the find increasing the number of boys but feel 4 5 into 5 into 2 4 5 6 4 0 5 into 7 into 2 into 2 is equal to 15 upon 3 into one 15 upon three into one x is equal to
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