Răspunsuri

2014-02-10T16:59:37+02:00
Avem a primul numar deci urmatoarele sunt a+5,a+10 si a+15

Atunci a+a+5+a+10+a+15= 70

Deci 4a+30=70 => 4a=40 => a= 10

Numerele sunt 10,15,20,25
2014-02-11T00:19:19+02:00
A+b+c+d=70
b=a+5
c=B+5=a+5+5
d=c+5=a+5+5+5

a+a+5+a+10+a+15=70⇒ 4a+30=70⇒ 4a=40⇒a=10; b=15, c=20, d=25