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Answer

This is a Before After question. 

   Before  Transfer After  
20 cent  3u -15 3u – 15  
50 cent 2u +6 2u + 6
       

(3u – 15) /19  = (2u + 6) / 18

54u – 270 = 38u + 114

54u – 38u = 270 + 114

16u = 384

1u = 384 ÷ 16 = 24

3u = 24 × 3 = 72

72 × 0.2 = $14.40

2u = 2 × 24 = 48

48 × 0.5 = $24

14.40 + 24 = $38.40

 

 

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