Question

avarage of first 14 odd numbers

Answer 1

170.........................................................

Answer 2

First 14 odd nos. : 1,3,5,7,9,11,13,15,17,19,21,23,25,27
It's an A.P.
Here a = 1, d = 1, n = 14, t↓14 = 27
We know, Sn = n/2(a+tn)
S14 = 14/2(1+27)
S14 = 7 × 28
S14 = 196
Hence, Sum of first 14 odd terms is 196
We know, Average = Sum of all terms/ No. of terms = 196/14 = 14
.°. Average of first 14 odd nos. is 14.
@Jayesh !