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Question

# A certain stock begins the week trading at 8712 per share. If the average gain for the next four days is 12, by how much should the price of the stock increase during Friday so that the total grain for the stock during the entire five days is 5 percent?

A
194
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B
178
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C
218
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D
214
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E
238
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Solution

## The correct option is E 238Since we require the total gain in the stock price in five days to be 5% , the price of the stock on Friday would be 87.5×1.05=91.875On the first four days of the week, the price increases by 0.5, thus increasing in all by 2.Therefore the price should increase by 91.875−2−87.5=2.375=238 on friday.

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