Pls a survey asked students wether they have any siblings and pets

The correct answer option is B. 60%.

Step-by-step explanation:

We are given the results of a survey which asked the students whether they have any siblings and pets.

We are to determine the likelihood that student has a pet, given that he or she does not have a sibling.

Assuming A to be the event showing that a student does not have a sibling and B to be the event that a students has a pet.

Then P(B|A) is:

Substituting the given values, P(A)=0.25 and P(A∩B)=0.15:

So the percentage will be:

60%