Question

n automobil a parcurs 900 km in 3 zile.stiind ca in primele doua zile a parcurs 600 km, iar in ultemele doua zile 500 km, aflati cati km a parcurs in fiecare zi

Answer 1

x=distanta totala
x=900 km
a=prima zi
b=a doua zi
c= a treia zi

a+b=600km
b+c=500 km

a=?
b=?
c=?

600km+c=900 km
c=900 km-600 km
c=300 km

a+500 km=900 km
a=900 km-500 km
a=400 km

b=900 km-400 km-300 km
b=200 km

Sper ca ai inteles.. Bafta