There are 5 purple, 3 yellow, and 4 pink rocks in a jar. What is the chance of getting a purple rock if it was pulled out of the jar without looking?

5/12

To find the chance of getting a purple rock, we need to determine the total number of rocks in the jar and the number of purple rocks in the jar.

In this case, we have a total of 5 purple rocks, 3 yellow rocks, and 4 pink rocks. The total number of rocks in the jar is the sum of these three categories:

Total number of rocks = 5 (purple rocks) + 3 (yellow rocks) + 4 (pink rocks) = 12 rocks

Therefore, there are a total of 12 rocks in the jar.

Since we want to find the chance of getting a purple rock, we need to determine the number of purple rocks in relation to the total number of rocks.

Number of purple rocks = 5

So, the chance or probability of getting a purple rock is given by:

Probability of getting a purple rock = (Number of purple rocks) / (Total number of rocks)
= 5 / 12

Hence, the chance of getting a purple rock from the jar, if pulled out without looking, is 5/12.