Question
Caden, Liam and Mark have some stamps. The ratios of their stamps are as follows:

Caden : (Caden + Liam + Mark) = 3 : 7
Liam : (Caden + Mark) = 1 : 5

Mark has 20 stamps more than Liam. In the end, Mark gives away all he has to Liam and Caden so that both Liam and Caden end up with the same number of stamps, how many stamps has Caden received from Mark?
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Caden, Liam and Mark have some stamps. The ratios of their stamps are as follows:

Caden : (Caden + Liam + Mark) = 3 : 7
Liam : (Caden + Mark) = 1 : 5

Mark has 20 stamps more than Liam. In the end, Mark gives away all he has to Liam and Caden so that both Liam and Caden end up with the same number of stamps, how many stamps has Caden received from Mark?