In the sequence 5, 1, 4, 7, 3, 9, 8, 5, 7, 2, | vedclass

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(C) We need to find an even number $(E)$ such that the pattern is (Odd,Even,Even) i.e.,$(O, E, E)$.Let's analyze the sequence: $5, 1, 4, 7, 3, 9, 8, 5

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$3$

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(C) We need to find an even number $(E)$ such that the pattern is (Odd,Even,Even) i.e.,$(O, E, E)$.Let's analyze the sequence: $5, 1, 4, 7, 3, 9, 8, 5, 7, 2, 6, 3, 1, 5, 8, 6, 3, 8, 5, 2, 2, 4, 3, 4, 9, 6$.$1$. $(7, 2, 6)$: Here $2$ is an even number,preceded by $7$ (odd) and followed by $6$ (even). This is a valid pair.$2$. $(5, 8, 6)$: Here $8$ is an even number,preceded by $5$ (odd) and followed by $6$ (even). This is a valid pair.$3$. $(5, 2, 2)$: Here $2$ is an even number,preceded by $5$ (odd) and followed by $2$ (even). This is a valid pair.$4$. $(3, 4, 9)$: Here $4$ is an even number,but it is followed by $9$ (odd). This is not a valid pair.Thus,there are $3$ such even numbers.

In the sequence $5, 1, 4, 7, 3, 9, 8, 5, 7, 2, 6, 3, 1, 5, 8, 6, 3, 8, 5, 2, 2, 4, 3, 4, 9, 6$,how many even numbers are there which are immediately preceded by an odd number and immediately followed by an even number?

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