Răspuns :
a+b+c+d=100
b=2a a=b/2
c=2b
d=a+b b/2+b=b/2+2b/2=3b/2
b/2+b+2b+3b/2=100
b/2+3b+3b/2=100
b/2+6b/2+3b/2=100
10b/2=100
b=100*2:10=200:10=20
b=20
a=b/2=20/2=10
a=10
c=2b=2*20=40
c=40
d=3b/2=3*20/2=60/2=30
d=30
proba 10+20+40+30=100
b=2a a=b/2
c=2b
d=a+b b/2+b=b/2+2b/2=3b/2
b/2+b+2b+3b/2=100
b/2+3b+3b/2=100
b/2+6b/2+3b/2=100
10b/2=100
b=100*2:10=200:10=20
b=20
a=b/2=20/2=10
a=10
c=2b=2*20=40
c=40
d=3b/2=3*20/2=60/2=30
d=30
proba 10+20+40+30=100
Primul nr 10 ,al doilea fiind dublul primului nr este 20,al treilea fiind dublul celui de-al doilea nr este 40 iar al patrulea fiind suma primelor două nr este 30. Deci 10+20+40+30=100.sper ca team ajutat