Study the following table carefully to answer the question that follows:
NUMBER OF BOYS AND GIRLS IN FIVE STREAMS OF A COLLEGE OVER THE YEARS
What is the ratio of the total number of boys to the total numbers of girls from all the stream together for the year 2007 ?
The total number of boys in 2007 equals 698 + 765 + 571 + 1288 + 1151 = 4473
The total number of girls in 2007 equals 413 + 616 + 515 + 1016 + 1010 = 3570
Hence the ratio equals 4473:3570 = 213*21 : 170*21 = 213:170
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