in a rally of 256 students. boys and girls are in the ratio of 9:7. find the number of girls.
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Let the number of boys and girls be=x
9x:7x=256Students
9x+7x=256Students
16x=256students
x=256/16 students
x=16
hence,the number of boys = 9x=9X16=144
hence, the number of girls =7x=7X16=112
9x:7x=256Students
9x+7x=256Students
16x=256students
x=256/16 students
x=16
hence,the number of boys = 9x=9X16=144
hence, the number of girls =7x=7X16=112
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