Question

find the average of all odd no.between 20 and 40 is the average an odd or even no.

Answer 1

heyyyy mate

here is your answer..

odd number between 20 and 40 are
21,23,25,27,39,31,33,35,37,39

now average of odd number= sum of total number/ total number

21+23+25+27+29+31+33+35+37+39/10

300/10= 30

this is a even number=30

hope it help you

Answer 2

Answer :

Odd numbers lie between 20 and 40 are ---

21,23,25,27,29,31,33,35,37,39

Total odd numbers are --- 10

Sum of the odd numbers = 21+23+25+27+29+31+33+35+37+39

=> 300

$mean(average) = \frac{sum \: of \: observations}{total \: number \: of \: observations} \\ \\ mean \: = \frac{300}{10} \\ \\ mean \: = 30$


So the average of odd numbers between 20 and 40 is 30 which is an even number.


HOPE IT WOULD HELP YOU