Question

intr-o livadas-au plantat 450 pomi in primele doua zile s-au plantat 340 in ultimele doua zile 210 pomi.câți pomi sau plantat in a doua zi

Answer 1

notam pomii din prima zi =a;a doua zi=b;a treia zi=c
a+b+c=450
a+b=340
c=450-340
c=110
b+c=210
b+110=210
b=210-110
b=100 pomi in a doua zi

Answer 2

a+b+c=450
a+b=340
b+c=210
340+c=450
c=110
b+110=210
b=100 pomi plantati a doua zi