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Ben and Jerry shared an amount of money in the ratio 4:5. After Ben spent $78, the ratio of Ben's money to Jerry's money became 1:2. How much money did Jerry have?

 Sep 14, 2021
 #1
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b/j = 4/5      or     b = 4/5 j

 

(b-78)/j = 1/2

 b - 78 = 1/2 j

4/5 j - 78 = 1/2 j

3/10 j = 78

j = 260    

 Sep 14, 2021

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