A jar contains 7 blue cubes, 4 blue spheres, 5 green cubes, and 6 green spheres. If you select an object at random, what is the probability that the object is green or a cube?

Answer 1

There are a total of 7 + 4 + 5 + 6 = 22 objects in the jar.

The number of green cubes is 5.
The number of green spheres is 6.
The number of blue cubes is 7.

The probability of selecting a green cube is 5/22.
The probability of selecting a green sphere is 6/22.
The probability of selecting a blue cube is 7/22.

Therefore, the probability of selecting an object that is green or a cube is:

(5/22) + (6/22) + (7/22) = 18/22 = 9/11

So, the probability of selecting an object that is green or a cube is 9/11.