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ivy1210

2004-05-24 10:13:57

請幫我解題!!

A clerk multiplied a number by ten when it should have been divided by ten. The answer he got was 100. What should the answer have been?

還有請問一下.哪裡還找得到一些英文的數學題目?謝謝大家囉!!

ivy1210

2004-05-25 09:30:12

又來一題
The cost of four dozen proof machine ribbons and five dozen accounting machine ribbons was $100. If one dozen accounting machine ribbons cost $20 what is the cost of a dozen proof machine ribbons?

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