l = distanta totala
a = distanta in prima zi
b = distanta in a doua zi
c = distanta in a treia zi
a + b + c = l
a = 5.35 km
b = 5.35 - 1.32 = 4.03
c = (a+b)-2.1 = (5.35+4.03)-2.1 = 9.38 - 2.10 = 7.28
l = 5.35+4.03+7.28
l = 9.38 + 7.28
l = 16.66 km
Sper ca te-am ajutat :)