Question

The sum of all even numbers between 21 and 51

Answer 1

HI


HERE IS THE ANSWER

FIRST WE WILL FIND ALL EVEN NUMBERS BETWEEN 21 AND 51 :

=22,24,26,28,30,32,34,36,38,40,42,44,46,48,50.

WE WILL DO SUM OF ALL EVEN NUMBERS BETWEEN 21 TO 51


=22+24+26+28+30+32+34+36+38+40+42+44+46+48+50=540