AMC8 2007

AMC8 2007 · Q5

AMC8 2007 · Q5. It mainly tests Linear equations.

Chandler wants to buy a \$500 mountain bike. For his birthday, his grandparents send him \$50, his aunt sends him \$35 and his cousin gives him \$15. He earns \$16 per week for his paper route. He will use all of his birthday money and all of the money he earns from his paper route. In how many weeks will he be able to buy the mountain bike?

Chandler想买一辆500美元的山地车。他的生日时，祖父母给了他50美元，姑姑给了他35美元，表亲给了他15美元。他每周做报纸递送赚16美元。他将使用所有的生日钱和报纸递送赚的钱。需要多少周他才能买得起山地车？

(A) 24 24

(B) 25 25

(D) 27 27

(E) 28 28

Answer

Correct choice: (B)

正确答案：（B）

Solution

(B) For his birthday, Chandler gets $50+35+15=100$ dollars. Therefore, he needs $500-100=400$ dollars more. It will take Chandler $400\div16=25$ weeks to earn 400 dollars, so he can buy his bike after 25 weeks.

（B）在生日时，Chandler 得到 $50+35+15=100$ 美元。因此，他还需要 $500-100=400$ 美元。Chandler 需要 $400\div16=25$ 周才能赚到 400 美元，所以他可以在 25 周后买到他的自行车。

Topics

AL.001 Linear equations