Re: [計量] OG綠 11th DS49
※ 引述《wennythepooh (維尼)》之銘言：
: If the total price of n equally priced shares of a certain stock was $12,000
: , what was the price per share of the stock?
: 1. If the price per share of the stock had been $1 more, the total price of
: the n shares would have been $300 more
: 2. If the price per share of the stock had been $2 less, the total price of
: the n shares would have been 5 percent less
: 答案是D，但一時之間思考有點混亂，所以就有點搞糊塗了
: 懇請強者解惑<(_ _)>
題目說n股的股票總價12,000元，問能不能算出一股多少錢
條件一：若每股價格多1元，則n股總價多300元
=>那就是告訴你n=300，那每一股就是12,000/300=40
條件二：若每一股價格少2元，則n股總價會減少5%
=>減少5%也就是減少600(12,000*5%)，n=600/2=300，則每一股仍是12,000/300=40
兩條件均能得解，故答案是D
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