Each of the 60 mineral water bottles in a certain shipment is either 5
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20 Oct 2024, 10:14
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Each of the 60 mineral water bottles in a certain shipment is either 500 ml bottles or 1 liter bottles, and the average (arithmetic mean) volume of the bottles in the shipment is 800 ml. If the average volume of the bottles in the shipment is to be reduced to 600 ml by removing some of the 1 liter bottles, how many 1 liter bottles must be removed?
A. 24
B. 36
C. 20
D. 30
E. 40
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