निम्नलिखित श्रृंखला को देखें और प्रश्न का उत्तर दें (सभी संख्याएं केवल एकल अंक वाली संख्याएं हैं)। (बाएं) 3 5 2 3 4 3 1 5 7 9 5 8 5 7 5 4 2 3 6 2 1 3 7 6 9 7 4 (दाएं) ऐसे कितने सम (even) अंक हैं जिनमें से प्रत्येक के ठीक पहले एक विषम (odd) अंक है और ठीक बाद में भी एक सम (even) अंक है?

Refer to the following number and symbol series and answer the question that follows. Counting to be done from left to right only. (All numbers are single-digit numbers.) (Left) 5 * 1 & 1 6 $ © * 3 8 # © € 1 & © 1 © 8 % 4 (Right) How many such numbers are there each of which is immediately preceded by a number and also immediately followed by a symbol?

Refer to the following number series and answer the question that follows (all numbers are single-digit numbers only). Counting to be done from left to right only. (Left) 2 7 4 7 7 3 3 3 1 4 8 9 8 8 2 8 5 6 7 9 7 1 3 3 1 6 2 (Right) How many such odd numbers are there, each of which is immediately preceded by an even number and also immediately followed by an even number?