蘋果宣佈他們已經售出一億部iPod。第一台iPod是在零一年十一月推出，經短短五年半就售出一億部，期間推出了十款。
我所擁有的iPod佔這一億部iPod的0.00004%，真的很光榮。數學題：請以n/100000000 * 100%的算式，計算出你擁有的iPod數量所佔的比率。也請估計這一億台iPod有幾多台已經壞了。
3 Responses to “第一億部iPod已經售出”
- 1 Pingback on Apr 11th, 2007 at 10:21 UTC
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我估佔五分之一的iPod 已壞。
100000000/((7*365 1 97)*24) = 1570.5..
大約一買1570.5部，在每一個鐘。
我有五分二的iPod已壞掉。