Question

VA ROG MULT CINE MA AJUTA EXERCITIUL 3,SUPER URGENT

Answer 1

x- drumul
Prima zi : 20x/100=5x/25;
Rest: 100x/100 -20x/100=80x/100
A doua zi: 30/100 •80x/100=3/10 •4x/5=12x/50= 6x/25;
Cat a parcurs in cele 2 zile:
5x/25 +6x/25=11x/25;
Cat i-a mai ramas de parcurs:
25x/25- 11x/25=14x/25;
14x/25=560km;
x=560km: 14/25;
x=560km •25/14;
x =14000km/14=1000km;
Lungimea drumului parcurs de Ion in cele 3 zile este de 1000km.