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【OG20-P146-2题】
The table shows a summary of the ticket sales from four performances of a certain play. What is the difference between the maximum and the minimum ticket-sale revenue from a single performance?
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revenue:
Thursday night 40*200=8000
Friday night 50*240=12000
Saturday afternoon 40*220=8800
Saturday night 50*300=15000
15000-8000=7000
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