Răspuns :
a+ b+c+d = 3030
___/ a
___/+1 b
___/+1+1 c
___/+1+1+1 d
b = a+1
c=a + 1+1
d = a+ 1+1+1
3030 - 6 ( 1+1+1+1+1+1) =3024 un segment adică a
b = 3024 + 1 = 3025
c = 3024 + 1+1= 3026
d = 3024 +1+1+1 = 3027
___/ a
___/+1 b
___/+1+1 c
___/+1+1+1 d
b = a+1
c=a + 1+1
d = a+ 1+1+1
3030 - 6 ( 1+1+1+1+1+1) =3024 un segment adică a
b = 3024 + 1 = 3025
c = 3024 + 1+1= 3026
d = 3024 +1+1+1 = 3027
a+b+c+d=3030
b=a+1
c=a+2
d=a+3
a+a+1+a+2+a+3=3030
4a+6=3030
4a=3030-6
4a=3024
a=3024:4
a=756
b=a+1=756+1=757
c=a+2=756+2=758
d=a+3=756+3=759
756+757+758+759=3030
b=a+1
c=a+2
d=a+3
a+a+1+a+2+a+3=3030
4a+6=3030
4a=3030-6
4a=3024
a=3024:4
a=756
b=a+1=756+1=757
c=a+2=756+2=758
d=a+3=756+3=759
756+757+758+759=3030