4 9 6 2 3 4 7 8 2 1 9 6 4 3 2
Multiply by 7 the number of odd numbers which are immediately followed by an even number in the list above. What is the answer

【参考答案】

35(紧跟在偶数后面的奇数有5个，分别是9、3、7、9、3。故5乘以7得35。odd number奇数。even num......

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