Răspuns :
a+b+c=60
a+b=45 =>c=60-45=15
b+c=40 =>a=60-40=20
b=60-15-20=25
a+b=45 =>c=60-45=15
b+c=40 =>a=60-40=20
b=60-15-20=25
a + b + c = 60 kg
a + b = 45 kg
b + c = 40 kg
__________
→ c = 60 - 45 = 15 kg
→ a = 60 - 40 = 20 kg
→ b = 40 - 15 = 25 kg
a + b = 45 kg
b + c = 40 kg
__________
→ c = 60 - 45 = 15 kg
→ a = 60 - 40 = 20 kg
→ b = 40 - 15 = 25 kg