The number of students enrolled in a college is shown in the following table.
The ratio of the total number of boys to that of girls in the college is:
Total number of boys = 18 + 47 + 40 +Â 30 = 135
Total number of girls = 35 + 25 + 45 + 10 = 115
The ratio of the total number of boys to that of girls in the college = 135 : 115 = 27 : 23
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