Question 40

Select the number that can replace the question mark (?) in the following series.
8, 17, 9, 19, 10, 21, ?, ?

Solution

Given series is alternate series with two series are 8, 9, 10, ..... and 17, 19, 21, .......

The next number for the first series is 11

The next number for the second series is 23

$$\therefore\ $$The given series is 8, 17, 9, 19, 10, 21, 11, 23

Hence, the correct answer is Option C

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Select the number that can replace the question mark (?) in the following series.8, 17, 9, 19, 10, 21, ?, ?