The ratio of girls and boys attending a school is 7:8.if there are 640 boys in the school.,how many girls are there? Plzzzzzz solve this
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Step-by-step explanation:
Let the ratio of boys and girls is 7x:8x
The number of boys is 640
That is 7x=640
X=90
But it is given that the ratio is 7:8
ie number of girls is 8× 90
That is 720
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