A lion runs 45 mph and crosses a bridge in 40 seconds. A cheetah runs across the same bridge in 30 seconds. How fast does the cheetah run?

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Answer:

60 mph because the cheetah runs at 4/3 of the lion's pace, which is 45 mph. 4/3 x 45 is 60.

The cheetah's speed is 60 mph

Average speed is total distance ran per time

Average speed = total distance / time

We are to determine the average speed of the cheetah. The average speed cannot be determined because the distance ran by the cheetah is not provided. The distance has to be determined

Information on the distance run can be determined from the information of the lion provided

45 = total distance ÷ 40

total distance = 45 x 40

total distance = 1800

Average speed of the cheetah = 1800 ÷ 30

= 60 mph

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