Question

Problema con ecuaciones

Answer 1

t/3+t/5+210 = t
5t/15 +3t/15 +210 = t
210 = 15t/15 - 5t/15 - 3t/15 = 7t/15
t = 210*15/7 = 450
450-210 = 240
Respuesta:
Se han recorrido 240 kms