Question

Ema,Victor si Daria au folosit pt un experiment 217 cubur de gheata. Ema si Victor au folosit 158 de cuburi,iar Victor si Daria 144 de cuburi. Cate cuburi a folosit fiecare copil?

Answer 1

e + v + d = 217
e + v = 158
v + d = 144

158 + d  = 217
d = 217 -158 = 59 cuburi a folosit Daria
v + d = 144
v+59 = 144
v = 144 - 59 = 85 cuburi a folosit Victor
e + v + d = 217
e + 85 + 59 = 217
e = 73 cuburi a folosit Ema


verificare - 73 + 85 + 59 = 217

Answer 2

deci Ema a folosit 73 cuburi
Victor a folosit 85 cuburi
Daria a folosit 59 cuburi