3. 6, 12, 21,?, 48(a) 33(c) 40(b) 38(d) 45 – InterviewSolution

1.

3. 6, 12, 21,?, 48(a) 33(c) 40(b) 38(d) 45

Answer»

6 + (2 * 3) = 6 + 6 = 1212 + (3 * 3) = 12 + 9 = 2121 + (4 * 3) = 21 + 12 = 3333 + (5 * 3) = 33 + 15 = 48.

So the missing number is 33.

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