Can You Smell It?
A bottle of perfume is opened and a person at a distance m gets the smell after seconds. How much time(in seconds) will the smell take to cover a distance of m?
The answer is 20.
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If 10 m is smelt in 10 seconds ,the ratio 10:10 is 1 meaning that the speed of the smell is 1 m /s so to make the ratio 20: x 1
We make it 20.