Math, asked by shiwangitripathy, 1 year ago

The average of 6 observations is 12. If the 7th observation is included, the average is reduced by 1. What will be the 7th observation?

Answers

Answered by adityakjha24

11

avg = sum(S) / no. of terms

S1 = 12×6 =72

72 +x /7 = 11

72+x = 77

x = 5

x is 7th term

hopenthis will help

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