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Joyce and Kaylene had some stickers. The number of stickers Joyce had was 4/5 of what Kaylene had. Joyce then gave 5/8 of her stickers to Kaylene. As a result, Kaylene had 108 more stickers than Joyce. How many stickers did Joyce have at first?

 Sep 28, 2021
 #1
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Initially    j = 4/5 k       or     k = 5/4 j

 

Then

j - 5/8j     +  108    =   k  + 5/8 j       sub in red equation

  3/8 j      + 108     =  5/4j  + 5/8 j

                   108   = 12/8 j

                       j = 72

 Sep 28, 2021

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