What is the average number of luxury watches sold by stores A, D, E, F and H together?
A
3152
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B
3296
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C
3548
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D
3186
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E
3428
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Solution
The correct option is B 3296 Average number of luxury watches (18×560−16×320)+(15×560−13×320)+(20×560−22×)+(8+560−8×320)=+(9×560−12×320)5(10080−5120)+(8400−4160)+(11200−7040)+(4480−2560)=(5040−3840)5=4960+4240+4160+1920+12005=164805=3296