Respuesta :

Answer:

Answer - a) 1:80

               b) 1:80

Step-by-step explanation:

All the ratio should be written in lowest form. these are the answers for both the questions.

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a) 1 km =1000 m
5 km*1000 =5000m
=5000:400. = 50:4

b) 1 hours = 60 minutes
2 hours *60 minutes =120 minutes
=120 minutes :160 minutes =(12:16)/4
=3:4