Question 9

In the following question, select the missing number from the given series.
19, 38, ?, 228, 684, 1368

Solution

The numbers are first multiplied by 2 and then by 3, then again by 2 and then 3 and so on.

19 $$\times2$$ = 38

38 $$\times3$$ = 114

114 $$\times2$$ = 228

228 $$\times3$$ = 684

684 $$\times2$$ = 1368

=> Ans - (C)

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In the following question, select the missing number from the given series.19, 38, ?, 228, 684, 1368