Question

a+b+c+d=52 , a,b,c,d=nr. consecutive pare a,b,c,d=?

Answer 1

a+b+c+d=52 b=a+2 c=b+2=a+4 d=c+2=b+4=a+6. Inlocuim mai sus: a+a+2+a+4+a+6=52 4a + 12 =52 4a =40 --> a=10,b=12,c=14,d=16