How many even numbers are immediately followed by an odd number but not immediately preceded by an even number in the following series?
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
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Correct answer: (A) 13
Explanation
Checking each even number that has an odd number after it and no even number before it gives 13 such numbers.