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Each row of a seating arrangement seats 7 or 8 people. Forty-six people are to be seated. How many rows seat exactly 8 people if every seat is occupied?

 Aug 11, 2021
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46 - 7 = 39, which is not a multiple of 8.

46 - 7*2 = 32, which is a multiple of 8.

thus the answer is 4.

 Aug 11, 2021

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