Resolve Esta- 03
Autor: MATEMÁTICA DA INFORMAÇÃO | Publicado: 2015-08-16T13:40:00-07:00

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Se
a distância entre duas cidades for, por exemplo, 190 km e uma pessoa em seu
carro viajar de uma até a outra em 2 horas, dizemos que nessa viagem o carro
desenvolveu uma velocidade média de 95 km/h. Suponha que uma pessoa viaja de
uma cidade A para uma cidade B com velocidade de 90 km/h e volta de B para A
com velocidade de 110 km/h. Nessa viagem de ida e volta, qual foi à velocidade
média desenvolvida? 

Fonte: Revista do Professor de Matemática número 81.

Resposta: 99
km/h