Question

The top speed of a cheetah is approximately 1.2 × 10^2 kilometers per hour, while the speed of the fastest human is approximately 4 × 10^1 kilometers per hour. How many times faster is the top speed of a cheetah than the speed of a human?

Answer 1

1.2 × 10^2 = 1.2 × 100 = 120.
4 × 10^1 = 4 × 10 = 40

120/40 = 30.

The cheetah is 30 times faster than a human.