Question

The sum of three numbers in


a.p is 36 and sum of thier square is 450.find the numbers

Answer 1

let three numbers be a-d;a;a+d

a-d+a+a+d=36

3a=36

a=12

sum of squares is 450

[a-d]²+[a]²+[a+d]²=450

simplify the sum you will get the answer substitute `a` place 12