the ratio of the numbers of girls to the numbers of boys in a class is 5:4 . If there are 16 boys in the class then the number of students in the class be ....
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4x=16
x=4
5x+4x=9x
9x=9×4=36
x=4
5x+4x=9x
9x=9×4=36
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the total number of the class will be 36
let, x be the common factor .
according to the problem,
4x=16
therefore x = 4
no of girls in the class = 5x
therefore, 5×4 = 20
total number =20 +16 = 36
let, x be the common factor .
according to the problem,
4x=16
therefore x = 4
no of girls in the class = 5x
therefore, 5×4 = 20
total number =20 +16 = 36
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