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The average of 11 numbers is 10.9. If the average of the first six numbers is 10.5 and that of the last six numbers is 11,4, then the middle number is

(a)    11                          (b)    11.3                            (c)    11.4                     (d)    11.5



Question ID - 50823 | SaraNextGen Top Answer

The average of 11 numbers is 10.9. If the average of the first six numbers is 10.5 and that of the last six numbers is 11,4, then the middle number is

(a)    11                          (b)    11.3                            (c)    11.4                     (d)    11.5

1 Answer
127 votes
Answer Key / Explanation : (d) -

Middle number =  

 =

127 votes


127