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1 April, 21:29

In a newspaper, it was reported that yearly robberies in Springfield were up 40% to 196 in 2013 from 2012. How many robberies were there in Springfield in 2012?

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  1. 1 April, 21:38
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    There were 140 robberies in Springfield in 2012.

    Step-by-step explanation:

    Let's marked (named) robberies in 2012 with x, which is worth 100%

    196 robberies in 2013 worth 100% + 40% = 140%

    Now we will make proportion

    x : 196 = 100 : 140

    When we multiply external and internal members we get

    140 x = 196 · 100 = > 140 x = 19600 = > x = 19600/140 = 140

    x = 140 robberies in 2012
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