Atrain left for london, and after 9 hours later, a car traveling 80 miles per hour tried catching up to the train. after 3 hours, the car caught up. what was the train's average speed

20 miles per hour

Step-by-step explanation:

Given that the train left for London, and after 9 hours later, a car traveling 80 miles per hour tried catching up to the train. After 3 hours, the car caught up

Which means that the car travelled the same distance in 3 hours as the train travelled in 9 + 3 = 12 hours

Let the distance be d

Given the speed of car is 80 miles per hour

We know that

d = 240 miles

Now for the train Average speed = total distance / total time taken

Average speed of the train = = 20 miles per hour

b

step-by-step explanation:

u take $75 minus $60.the anwer/original($75)multiply by 100