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In a box, the ratio of the number of red marbles to the number of blue marbles is 2:5. 1/3 of the red marbles are removed from the box. Find the ratio of the number of red marble to the number of blue marbles in the box in the end. Express your answer in the simplest form.

 Oct 18, 2021
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Ratio = 2 + 5 = 7

at first

        R:B:T = 2:5:7 = 6:15:21

 

removed red --->

1/3 * 6 = 2

 

in the end

       R:B:T              = 4:15:19

 

R:B = 4:15 

 Oct 21, 2021

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