38. If a Can of Soda and Stick of Gum Costs $1.10 If a can of soda and stick of gum costs $1.10, and a can of soda costs $1 more than a stick of gum, how much does the stick of gum cost? Submitted by tartle · Added 3 November 2015 Show Solution Solution: Let the cost of the stick of gum be x dollars. Then the cost of the can of soda is x + $1. According to the puzzle, the total cost is x + (x + $1) = $1.10. Solving this gives 2x + $1 = $1.10, which simplifies to 2x = $0.10, so x = $0.05. Therefore, the stick of gum costs $0.05.
Comments (2)
5 cents
S + G = 1.10
but S = G + 1
so (G + 1) + G = 1.10
i.e. 2G + 1 = 1.10
2G = 0.10
G = 0.05
So gum costs 5 cents
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