Question

The diagram shows a spinner made up of a piece of card in the shape of a regular pentagon, with a toothpick pushed through its center. The five triangles are numbered from 1 to 5.
The spinner is spun until it lands on one of the five edges of the pentagon. What is the probability that the number it lands on is odd?

Answer 1

Answer:

The five triangles are numbered from 1 to 5. The spinner is spun until it lands on one of the five edges of the pentagon. What is the probability that the number it lands on is odd

Answer 2

Answer:

The probability for the spinner to land on an odd number is 60%.

Step-by-step explanation:

We are assuming that the spinner is symmetric so the probability of landing on each of the $5$ faces is equal.

Then the probability in each case is $P=1/5 = 20\%$.

If you number the faces $\{1, 2, 3, 4, 5\},$ then you have $3$ odd numbers, each one is independent.

So the probability that the spinner will land on an odd-numbered triangle:

$P=3/5 = 60\%$