In a school, there are 1000 students, out of which 430 are giris. It is known that out of 430 , '10 %' of the girls study in class XII. What is the probability that a student chosen randomly studies in clașs XIl given that the chosen student is a girl?

In a class, 40% of students study Maths and Science and 60% study Maths. What is the probability of a student studying Science given the student is already studying Maths?

There are 100 sstudents in a college class of which 36 are boys studying statistics and 13 girls not studying statistics. There are 55 girls in all. Suppose a students is picked up at random form the class. Then match the following

In a class there are 17 boys and 13 girls . In another class there are 15 boys and 12 girls. What is the probability of selecting a girl from all students from both the classes.

In class XI of a school 40% of the students study Mathematics and 30% study Biology, 10% of the class study both Mathematics and Biology. If a student is selected at random from the class, find the probability that he will be studying mathematics or Biology.

In class10A,there are 30 boys and 20 girls. In10B, there are 15boys and 25 girls. One student is to be selected from each class.What is the probability of both being girls?

In class10A,there are 30 boys and 20 girls. In10B, there are 15boys and 25 girls. One student is to be selected from each class.What is the probability of both being boys?

In class10A,there are 30 boys and 20 girls. In10B, there are 15boys and 25 girls. One student is to be selected from each class.What is the probability of atleast one boy?

60 % of the students in a class are boys. If the number of girls in the class is 20 , what is the total number of students?.

In class10A,there are 30 boys and 20 girls. In10B, there are 15boys and 25 girls. One student is to be selected from each class.What is the probability ofone boy and one girl?