the mean of 31 reasults is 60 . if the mean of first 16 reasults is 58 and that of the last 16 reasults is 62 . find the 16th reasult
Answers
Answered by
0
Total of 31/31 = 60
Total of 31 = 60 * 31
= 1860
Total of first 16 / 16 = 58
= 928
Total of last 16 / 16 = 62
= 992
Now we know that there are total 31 terms in the mean but we are given the data of
First 16 terms + Last 16 terms = 32 terms
So ,
(total of first 16 terms + total of last 16 terms) - (total of 31 terms) = the 16th term
(928 + 992) - 1860 = 16th term
1920 - 1860 = 16th term
16th term = 60
Happy Learning :)
Similar questions