Question

Afla numarul abc,stiind ca :
a+b+c=12
b:c=2
a:c=3

Answer 1

b:c=2, rezulta ca b=2c
a:c=3, rezulta ca a=3c
se inlocuieste in a+b+c=12
3c+2c+c=12
6c=12
c=12:6
c=2
b=2c=2·2=4, deci b=4
a=3c=3·2=6, deci a=6

Answer 2

a=6
b=4
c=2
6+4+2=12
4:2=2
6:2=3