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30-01-2018
Mathematics

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At a country concert, the ratio of the number of boys to the number of girls is 2:7 . If there are 250 more girls than boys , how many boys are at the concert?

Respuesta :

30-01-2018

2:7 So the ratio difference is 5. the real value is 250
ratio 5 = 250
ratio 1 = 50
so ratio 2 is 100boys

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