The average of 40 results is 50 and the average of 60 other results is 55. What is the average of all the results? , CLASS...

The average of 30 results is 20 and the average of other 20 results is 30. What is the average of all the results ?

The average of 11 results is 50 .If the average of the first 6 results is 49 and that of the last 6 is 52, the 6 th result is

The average of 11 results is 50. If the average of the first six results is 52 and that of the last six is 49, the sixth result is- 11 परिणामों का ओसत 50 है। यदि उनमें पहले 6 परिणामों का औसत 52 हो और अंतिम 6 का 49 हो, तो छठा परिणाम कितना होगा?