Question

Un turist are de parcurs 100 km in trei zile. Stiind ca in primele doua zile a parcurs $25 \frac{1}{2} km$ , respectiv $40 \frac{1}{3} km$ , aflati cati km mai are de parcurs in ultima zi

Answer 1

a+b+c=100km
a=25:2x1=12,5
b=40:3x1=13,3
12,5+13,3=25,8
100-25,8=74,2(a ramas a treia zi)