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A jar contains 17 blue cubes,4 blue spheres,5 green cubes,and 16 green spheres.what is the probability of randomly selecting a blue object or a cube? Give your answer as a fraction.

User Jack Cole
by
8.3k points

2 Answers

6 votes

Answer:

13/21. that is 0.619

Explanation:

there are 17 + 4 + 5 + 16 = 42 things in total.

p = probabililty.

p(blue object) = (17 + 4)/ 42

= 1/2.

p(cube) = (17 + 5) /42

= 11/21.

we have to subtract the things that are both blue and a cube:

there are 17 of those. that is p(blue and cube) = 17/42.

so our answer is (1/2) + (11/21) - (17/42)

= 13/21. that is 0.619

User Varun A M
by
8.1k points
4 votes

Answer:

The answer would be 3/16

Step-by-step explanation: Hope this helped

User JayUser
by
8.5k points