In a college the ratio of boys and girls are in the ratio 7:9. 65% girls and 40% boys were absent. Find the girls present if the total number of students in a college were 320.
Boy: Girl = 7:9 Total number of students = 320 Number of Boys = (7/16)×320 = 140 Number of Girls = (9/16)×320 = 180 Number of girls absent = 65%×180 = 117 Number of boys absent = 40%×140 = 56 Total number of girls present = 180 – 117 = 63
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