Help :(( i am very confused and if the screenshot says 25 just know its 26 not 25

Question

asked Jan 14, 2021 148k views

2 Answers

Shimy · Answer 1 · 2021-01-17T14:17:39+0000

Answer:

Explanation:

25-3 =22 have a cat or a dog

15 +16 =31 students are in the class if every person has either a cat or a dog

But we have 22

so 31 - 22 = 9 have both cat and dog

the probability is 9/25