Question

Ab+a+b=250 bc+b+c=300 ac+a+c=216 then find the approx value of the expression (a+b+c).

Answer 1

votes

 

Best answer

2(ab+bc+ca)+2(a+b+c)=766
2(250-a-b+300-b-c+216-a-c)+2(a+b+c)=766
1532-(a+b+c)=766
2(a+b+c)=766
a+b+c=383

pls mark it as brainlist answer