59.8k views
4 votes
John travels 20km at an average speed of 40km/h while Mary travels 80km at an average speed of 120km/h. John and Mary depart at the same time. Determine by calculation who arrives earlier at Cheir respective destination.​

1 Answer

5 votes

Explanation:

20÷40

=0'5×60min

30min

80÷120

=0,6666666667×60

=40mins

john will arrive earlier

User KTibow
by
7.7k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories