Răspuns :
a+b+c+d =360 grade
a/2+b/4+c/6+d/8 =a+b+c+d/2+4+6+8 =360 /20 =18
a/2 =18 ; a =2*18 =36 gr
b/4 =18 ; b =4*18 =72 gr
c/6 =18 ; c =6*18=108 gr
d/8 =18 ; d =8*18 =144 gr
a+b+c+d =360 grade
a/2+b/4+c/6+d/8 =a+b+c+d/2+4+6+8 =360 /20 =18
a/2 =18 ; a =2*18 =36 gr
b/4 =18 ; b =4*18 =72 gr
c/6 =18 ; c =6*18=108 gr
d/8 =18 ; d =8*18 =144 gr