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12 October, 09:52

In a survey, one out of five people named blue as their favorite color. Three out of ten named red. If 1,100 people were included in the survey, how many named blue or red as their favorite color

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  1. 12 October, 11:18
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    1/5 = x/1100

    5x = 1100

    x = 1100 : 5

    x = 220

    So 220 people named blue as fav.

    3/10 = x/1100

    3x = 1100

    x = 1100 : 3

    x = 366.6666 ... = 367

    So 367 people chose red
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