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How many even numbers are immediately followed by an odd number but not immediately preceded by an even number in the following series?3 4…

3179Medium DSSSB TGT Computer Science 0 replies 2 views

How many even numbers are immediately followed by an odd number but not immediately preceded by an even number in the following series?

3 4 3 2 5 6 7 4 3 4 5 6 7 8 9 6 5 4 3 2 2 4 5 6 7 8 9 9 7 6 0 7 6 5 4 3

Correct answer: A

Explanation

Count an even number only when the next number is odd and the number before it is not even. This gives 4, 2, 6, 4, 4, 6, 8, 6, 4, 6, 8, 6 and 4, a total of 13.

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