Question

Suma a doua nr este 480.Primul nreste de 4 ori mai mare decat al doilea . Afla nr.

Answer 1

a+b=480
a=4b
4b+b=480
b=480:5
b=96
a=480-96=384

Answer 2

1 nr-4x
2 nr-x
rezolvare:
4x+x=480
5x=480
x=480:5
x=96
1 nr-96*4=384
2 nr-96
verificare:
384+96=480(adevarat)
raspuns:1 nr-384; 2 nr-96