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 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 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.

There are 50 children ina class.Thirty of them are girls . There are 40 children in another class. 25 of them are boys.One student is taken from each class at random. What is the number of outcomes ? How many out comes contain both boys. How many outcomes contain both girls. How many out comes have one boy and one girl.

Riyas calculates the total length of uniform cloth required for the students of his class. Boys require 1.25 metres each and girls require 1.75 metres each. There are 20 boys and 23 girls in the class. Then how many metres of cloth are required in all?

Mean mark scored by the students of a class is 53. The mean mark of the girls is 55 and the mean mark of the boys is 50. What is the percentage of girls in the class ? a) 60% b) 40% c) 50% d) 45%

In a class of 100 students, there are 70 boys whose average marks in a subject are 75.If the average marks of the complete class is 72. then what is the average of the girls?