In class there are 25 girls and 15 boys . the teacher takes in all their books in a random order. calculate the probability that the teacher will a) mark a book belonging to a girl first b) mark a book belonging to a boy first
Answers
Answered by
4
Answer:
a) 1/40
b) 1/40
Step-by-step explanation:
first calculate the number of students =15+25
=40
then
Answered by
2
Answer:
1. 25 + 15 = 40
25/40 = 5/8
2. 15 +25=40
15/40 = 3/8
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