. A grocer has a sale of Rs 100, Rs. 45, Rs. 68, Rs. 72 and Rs. 52 for 5 consecutive months. How much sale must he have in the sixth month so that he gets an average sale of Rs. 65?
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Average of 6 months =
100 + 45 + 68 + 72 + 52 + x = 65
6
337 + x = 390
x = 390 - 337 = 53
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