The numbers of pages of a book Ninad read for five consecutive days were `60, 50, 54, 46, 50`. Find the average number of pages he read everyday.

a, b, c, d, e are five consecutive odd number. Find the average of all this number in terms of a.

The average of five consecutive numbers is 48. Find the largest number.

The following table gives the number of pages written by Saria for completing her own book for 30 days. Find the mean number of pages written per day.

Find the average of all prime numbers between 30 and 50.

Find the average of all prime numbers between 30 and 50.

The average number of pages of 9 books is 400. If the average number of pages in the first 5 books is 430 and that of in the last five books is 380, then find the number of pages in the fifth book. 9 पुस्तकों के पृष्ठों की औसत संख्या 400 है | यदि प्रथम पांच पुस्तकों के पृष्ठों की औसत संख्या 430 और अंतिम पांच पुस्तकों की 380 है, तो पांचवीं पुस्तक के पृष्ठों की संख्या कितनी है ?

Mr. Anant Roy, the renowned author, recently got his new novel released. To his utter dismay he found that for the 1,007 pages on an average there were 2 mistakes every page. While, in the fist 612 pages there were only 434 mistakes, they seemed to increase for the latter pages. Find the average number of mistakes per page for the remaining pages.