Refer to the following series and answer the question (All numbers are single digit numbers only. Counting to be done from left to right.)
Refer to the following series and answer the question (All numbers are single digit numbers only. Counting to be done from left to right.)
(Left) 3 7 2 6 2 7 3 8 7 3 7 6 4 2 4 5 4 9 5 7 7 2 4 (Right)
How many such even digits are there each of which is immediately preceded by an odd digit and also immediately followed by an even digit?
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Correct answer: (A) Three