यदि संख्या 697312458 में प्रत्येक सम अंक में 1 जोड़ा जाता है और प्रत्येक विषम अंक से 1 घटाया जाता है, तो इस प्रकार बनी नई संख्या में सभी विषम अंकों का योग क्या होगा?

If 2 is added to each odd digit and 1 is subtracted from each even digit in the number 7246158, what will be the sum of the digits that are third from the left and third from the right in the new number formed?

If 1 is added to each odd digit and 2 is subtracted from each even digit of the number 6847153, then which digit will be the second digit from the left in the new number formed?