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A grocer has a sale of Rs. 6435, Rs. 692...

A grocer has a sale of Rs. 6435, Rs. 6927, Rs. 6855, Rs. 7230 and Rs. 6562 for 5 consecutive months. How much sale must he have in the sixth month so that he gets an average sale of Rs. 6500?

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The correct Answer is:
`(cot ( log x) )/( x)`
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