Question

(x+1)+(x+2)+(x+3)+...+(x+50)=1375

Answer 1

 

 { x + 1 } + { x + 2 } + { x + 3 } + ............... + { x + 50 } =1375

(x+x+...+x)+(1+2+3+...+50)=1375

50.x+1275=1375

50.x=1375-1275

50.x=100

x=100:50

x=2

Answer 2

=x+x+...+x+1+2+3+...+50=1375

=>x50+(1+50)\(\frac{50}{2}\)=1375

=>x50+1275=1375

=>50x=100

=>x=2