If 38% of plastic bottles in a production line are blue and the remaining 7750 plastic bottles are brown, how many plastic bottles are blue? (show all working out)

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Hello there.

If 38% of plastic bottles in a production line are blue and the remaining 7750 plastic bottles are brown, how many plastic bottles are blue?

 7750 is 68% 
7750/68 = 125
125 is 1%
38 x 125 = 38%
38 x 125 = 4750
There are 4750 blue bottles.

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Using the rise/run rule. you would get 2/6.simp. 1/3