Question

Without actual addition, find the sum of the following:- (i)1 + 3 + 5 + 7 + 9 + 11 + 13 + 15 + 17 + 19 + 21 + 23 + 25 + 2 ( PLZZ ANSWER FAST OR U WOULD HAVE VERY BAD EXPERIENCES)

Answer 1

Answer:

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

=4+5 + 7 + 9 + 11 + 13 + 15 + 17 + 19 + 21 + 23 + 25+2

=9+7 + 9 + 11 + 13 + 15 + 17 + 19 + 21 + 23 + 25+2

=16+9 + 11 + 13 + 15 + 17 + 19 + 21 + 23 + 25+2

=22+11 + 13 + 15 + 17 + 19 + 21 + 23 + 25+2

=33+13 + 15 + 17 + 19 + 21 + 23 + 25+2

=46+15 + 17 + 19 + 21 + 23 + 25+2

=61+15 + 17 + 19 + 21 + 23 + 25+2

=76+17 + 19 + 21 + 23 + 25+2

=93+19 + 21 + 23 + 25+2

=93+19+44+27

=112+ 71

=183

hence the answer is 183.