59. Ann deposited money into two new accounts, A and B. Account A earns 5 percent simple annual interest and account B earns 8 percent simple annual interest. If there were no other transactions in the two accounts, then the amount of interest that account B earned in the first year was how many dollars greater than the amount of interest that account A earned in the first year? (1) Ann deposited $200 more in account B than in account A. (2) The total amount of interest that the two accounts earned in the first year was $120. ans:C 请帮我看以下算法，我的认知应该是对的吧? (1) A*0.05 ，另外一个是B=(200-A)*0.08 没有方程式无法求得 (2) 无法得知 则(1)+(2): A*0.05+(200-A)*0.08=120 可得 192. On a certain day, Tim invested $1,000 at 10 percent annual interest, compounded annually, and Lana invested $2,000 at 5 percent annual interest, compounded annually. The total amount of interest earned by Tim's investment in the first 2 years was how much greater than the total amount of interest earned by Lana's investment in the first 2 years? (A) $5 (B) $15 (C) $50 (D) $100 (E) $105 ans:A 这题直接带公式进去好像不太对..... 谢谢各位帮忙.... --

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