In case of which soft drink was the average annual sale minimum during the period 1988-1993 ?

Solution

Sales of cool sip from 1988 to 1993 = 25+6+19+15+25+30 = 120

=> Average sales = 120/6 = 20

Sales of pep up = 30+35+30+25+20+20 = 160

=> Average sales = 160/6 = 26.67

Sales of dew drop = 10+15+25+15+30+25 = 120

=> Average sales = 120/6 = 20

Average sales of both cool sip and dew drop is minimum.

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