9, 5, 18, 21 ? 30, 36, 36, 42, 49 what is the missing number??

asked Jun 5, 2017 32.6k views

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2 votes

the pattern is +6 then

the pattern is +6 then +3 so, 21+6=27.

MDR answered Jun 6, 2017

by MDR

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9, 15, 18, 21, ?, 30, 36, 42, 59, ...

The pattern for this sequence is +6, +3, +6, +3, so the missing number will be 21 + 6, or 27.

Carbin answered Jun 9, 2017

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