Question

Which of these quantities represents an infinite set?

-the number of cars that will use Interstate 10 tomorrow

-the number of people who pass through the Panama Canal each day

-the number of ways to walk from your house to the closest store

-the number of grains of sand in the world

Answer 1

the number of grains of sand in the world

Answer 2

Just imagine my frnd u can count the number of cars number of people and number of ways to walk but can u count the grains of sand????? And so it is infinite and the rest are finite sets

Answer 3

hmm...i think its the number of ways to walk from your house to the closest store.

Answer 4

I agree with joe. We can, with enough time and persistance, count the number of grains of said in the world.

Answer 5

The number of grains of sand, while ridiculously large, is finite.

Answer 6

But for the house to store thing, imagine you thought it was finite, that these were all the possible paths from one to the other.