The star labelling programme of BEE provides labels on room air conditioners which are power saving guides to help consumers. The star label on air conditioners indicates a parameter Energy Efficiency Ratio (EER) which is the ratio of cooling capacity in watts to power consumption in watts. An EER of 3.1 indicates that for one watt of electrical energy, there is 3.1 watt of cooling capacity. If the EER of two ACs A and B are 2.8 and 3.3, then which one is more efficient?
a) A. b) B. c) Both A and B. d) Cannot be determined
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D cannot be determined
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