Question

Un automobil a parcurs in 3 zile 1200km. In prima zi a parcurs 30% din drum iar a doua zi 40% din rest. Ce distanta a parcurs in a treia zi?

Answer 1

1200...........100%
x..................30%
x=1200*30/100=360 prima zi
1200-360=840
840...........100%
x...................40%
x=840*40/100=336 a doua zi
360+336=696 
1200-696=504 km in a treia zi