Question

dublu nr a reprezinta de 4 ori numarul c,iar nr b este de 3 ori mai mare decat c.care sunt numerele,daca suma lor este 96?

Answer 1

3a=4c
b=3c
a+b+c=96/x3
3a+3b+3c=288
4c+3cx3+3c=288
7c+9c=288
16c=288
c=288:16
c=18
b=3x18
b=54
3a=4x18
3a=72
a=24

Answer 2

2a=4c⇒a=4c/2⇒a=2c
b=3c
a+b+c=96
c        /----------/
b        /----------/----------/----------
a        /----------/----------/
96:6=16
c=16
b=3c=3·16=48
a=2c=2·16=32
32+48+16=96