Students in the 7th and 8th grade at Imawinner Middle School are going on a field trip to the planetarium. If a student actively participates in the engagement activities at the planetarium, they are entered into a raffle to win a free lunch from their favorite restaurant. The table below shows the number of students in each grade and homeroom who engaged in the activities.
Table"
Homeroom A has 8 7th graders and 9 8th graders
Homeroom B has 10 7th graders
10 8th graders
Homeroom c has 7 7th graders 9 8th graders
Answers:
A 10/53
B 20/53
C 33/53
D 20/53
The total number of students participating in the activities from each homeroom is as follows:
Homeroom A: 8 + 9 = 17 students
Homeroom B: 10 + 10 = 20 students
Homeroom C: 7 + 9 = 16 students
The total number of students participating in the activities from all homerooms is 17 + 20 + 16 = 53 students.
Therefore, the probabilities are as follows:
A: 17/53
B: 20/53
C: 16/53
So the correct answer is:
A 17/53
B 20/53
C 16/53
D 20/53