the ratio of number of girls to boys in a class is 6:11.if the total number of students in the class is51.find the number of girls in the class
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Let the ratio be 6x and 11x.
Then 6x+11x=51
17x=51
x=51/17
x=3
Then the number of girls in the class =6*3=18
Then 6x+11x=51
17x=51
x=51/17
x=3
Then the number of girls in the class =6*3=18
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