Answer: The answer is 87, in order to solve this you need to look at the numbers upside down. The sequence comes out to be 86, ?, 88, 89, 90, 91; therefore the ? is 87.
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The answer is 87, in order to solve this you need to look at the numbers upside down. The sequence comes out to be 86, ?, 88, 89, 90, 91; therefore the ? is 87.