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% at Z = 100-50-25-20 = 5% = 20

Diff b/w X and Y = 25-20=5%. 5% is 20, so answer is 20
Bunuel
Half of a shipment of toy trucks was left at Store W, 25% at Store X, 20% at Store Y, and the remaining 20 at Store Z. What is the positive difference difference between the trucks left at Stores X and Y ?

A. 18
B. 20
C. 22
D. 24
E. 26
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