Question

find the mean of first 25 odd natural number

Answer 1

1+3+5+7+9+11+13+15+17+19+21+23+25=169
mean=169/2
=6.76

Answer 2

First 25 odd natural numbers are=> 1,3,5,7,9,11,13,15,17,19,21,23,25,27,29,31,33,35,37,39,41,43,45,47,49

Their mean is =(1+3+5+7+9+11+13+15+17+19+21+23+25+27+29+31+33+35+37+39+41+43+45+47+49)/25

=626/25

=25.4

Hope this helps

Regards