Letter One Jan. 25,2001 Dear Mr. Guan Li, From your advertisements we know transformers (变压器) in a variety of types. We are interested in your products. Would you please send us the details of your products If possible, please send us some pictures of the products. Looking forward to your early reply. Yours sincerely, Louis Smith Letter Two Feb. 14,2001 Dear Mr. Louis Smith, It’s our pleasure to submit the attached quotation (报价) for your review and consideration. Here enclosed are some pictures of our latest types of transformers. This quotation package consists of the following: Section 1 Price list for transformers Section 2 Types of transformers Section 3 Technical specification In the price list you can see we are giving you the lowest prices and offer our best goods. We also think it better to offer you a 5% discount on purchases of more than 10 units. Please advise if you have additional questions. Yours sincerely, Guan Li How many transformers must Mr. Louis Smith buy to get a discount of 5% ______ of them.