I usually spend 10 yuan on bus fares and 40 yuan on magazines or snacks weekly. To save money,
I decide to reduce the 40-yuan spending by half, so I can save 20 yuan every week. Then my
weekly savings will be 20 yuan. To buy the 800-yuan bike, I need 800÷20 = 40 weeks. I can also
try to make extra pocket money by helping with housework. With my budget and efforts, I will get
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