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求解,怎么做= = At a technology consulting firm with x computers, all of which are desktops or laptops, 30% are laptops; if 80% of the total number of computers have more than 1GB of RAM and 10% of the computers with less than 1GB of RAM are laptops (and no computers have exactly 1GM of RAM), approximately what percent of the desktops have more than 1GB of RAM?
| A) | 75% | | B) | 60% | | C) | 52% | | D) | 40% | | E) | 45% |
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