[!] Who comes next ? [!]
Algebra
Level
2
Given the set {2,3,4,6,6,9,8,12,10,??,12...} what is "??" equal to?
15
11
10
13
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1 solution
Numbers in an odd position ( first, third...) are multiples of 2, numbers in even positions ( second , fourth...) are multiples of 3. "??" Is in an even position so 3,6,9,12, [15] so 15 is correct