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A and B, two models of air conditioners, each have the [#permalink]
11 Nov 2003, 16:10
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A and B, two models of air conditioners, each have the capacity of 10, 000 BTU/hour. But they have different wattage, the wattage for A is 1765 and for B is 870 watts. If it costs $70 to operate model A for 1000 hours and if the rate per kilowatt hour is the same for the two models, approximately how much will it cost to operate model B for the same length of time.
This question doesnтАЩt seem difficult. The problem is that I donтАЩt understand the question. Any comments?. IтАЩll provide the answers later.