Question

1+2+3+4+5+6,,,,,,,+25=?​

Answer 1

SOLUTION:-

• To Find:-

1+2+3+4+5+......+25

• Formula:-

$=>\frac{(First \:Number + Last\: Number)\times Total\: Number}{2}$

• By The Problem:-

$=>\frac{(First \:Number + Last\: Number)\times Total\: Number}{2}$

First number=1

Last number=25

Total number=25

• Plot The Value:-

$=>\frac{(1+25)\times25}{2} \\=>\frac{26\times25}{2}\\=>13\times25\\=>325$

• Answer:-

325