Question

Radu pleaca in vacanta.In prima zi parcurge 3/10 din drum,a doua zi parcurge 4/7 din drumul ramas,iar a treia zi a parcurs cei 450 km ramasi pana la destinatie.Afla lungimea drumului parcurs de Radu pana la destinatie

Answer 1

7/7-4/8=450
3/7=450
450:3=150
150·7=1050 drum ramas
10/10-3/10=1050
7/10=1050
1050:7=150
150·10=1500 km drum total