mymegalife mymegalife

23-11-2016
Mathematics

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The ratio of red cars to blue cars in a parking lot was 7 : 2.If there were 35 red cars, how many blue cars were there?

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boscokwan boscokwan

23-11-2016

Let there are x blue cars.
7/2 = 35/x
7x=70
x=10
so there are 10 blue cars.

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