1.

the ratio of the number of girls to that of boys in a school is 9:11 if the number of girls in the school is 540 find the number of boys in the school​

Answer»

RATIO of the NUMBER of girls to that of boys in a school is 9 : 11

Let the number of girl be 9x & boys be 11x.

Number of girls = 540

9x = 540

x = 60

Number of boys = 11x = 11*60 = 660


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