Răspuns :
Răspuns:
a+b+c=75
a=c/2
b:c=2 rest 5=>b=2c+5
c/2+²⁾2c+²⁾5+²⁾c=²⁾75
c+4c+10+2c=150
7c=150-10
c=140:7=>c=20
a=20:2=>a=10
b=2×20+5=>b=45
Răspuns:
a+b+c=75
a=c/2
b:c=2 rest 5=>b=2c+5
c/2+²⁾2c+²⁾5+²⁾c=²⁾75
c+4c+10+2c=150
7c=150-10
c=140:7=>c=20
a=20:2=>a=10
b=2×20+5=>b=45