In a school there are 1000 students, out of which 430 are girls. 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 Class XII given that the chosen student is a girl

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

In a class, there are 70 students. Thirty of them are girls and the rest are boys. What fraction of the class are boys?

Two thirds of eth students in a class are boys and the rest girls. It is known that eh probability of a girl getting a first class is 0.25 and that of a boy getting a first class is 0.28. find the probability that a student chosen at random will get first class marks in the subject.

Two thirds of the students in a class are boys and the rest girls. It is known that the probability of a girl getting a first class is 0.25 and that of a boy getting a first class is 0.28. find the probability that a student chosen at random will get first class marks in the subject.

Out of 25 students of a class, 16 are girls. What is the percentage of girls?

Out of 32 students,8 are absent from the class. What is the percentage of the students who are absent?

A class has 20 girls and 16 boys. One student is selected at random. Find the probability that the student is a girl.

In an entrance examination, 60% students are boys. In the result of the test it was observed that 40% of boys secured grade 1 and 45% of girls secured grade 1. Find the probability that the student secured grade 1, if it is known the student is a girl.

Two third of the students of a class are boys and rest are girls . It is known that the probability of a girl getting a first division in Board examination is 0.4 and a boy getting first division is 0.35. Find the probability that a students chosen at random will get first division in Board examination.

A class has 12 boys and 4 girls. If three students are selected at random from the class, what is the probability that all will be boys?