Answers

ショートケーキをx個、プリンを20-x個買うとすると、
300x+100(20-x)≦4500
200x≦2500
故にこれを満たすx(x∈Z)の最大値は12

ショートケーキは12個買えば良い

N

丁寧にありがとうございます🙇

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