Answer:
Car A went 60 km in 3/4 hour, mean 60: 3/4=80 km per hour.
Car B went 80km in 4/5 hour, mean 80;4/5= 100km per hour.
So Car B went faster than Car A and faster than 20 km. That will be help.
Step-by-step explanation:
Answer: Car B was 1 1/4 times faster
Step-by-step explanation:
Car A went 60 km in 3/4 hour
1 divided by 3/4=4/3 (the inverse of 3/4 is 4/3)
60/1*4/3=80
Car A=80
Car B went 80 km in 4/5 hour
1 divided by 4/5=5/4
80/1*5/4=100
Car B=100
100 divided by 80 is 1 1/4
Hope This helps :P
