66, 36, 18, ?

[amp_mcq option1=”3″ option2=”6″ option3=”8″ option4=”9″ correct=”option1″]

The answer is 9.

The sequence is a list of numbers that are each 30 less than the number before it.

66 – 30 = 36
36 – 30 = 18
18 – 30 = 9

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