In a class 32 students out of 60 take tea. So find the probability of choosing randomly a student who doesn't take tea.

In a classroom 5% of the boys and 2% of the girls taller than 1.6 m. The class consists of 60% girl student. The probability that a randomly selected student is taken than 1.6 m is

90 students take Mathematics , 72 take Science in a class of 120 students. If 10 take neither Mathematics nor Science then the number of students take both the subjects is

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?

A class teacher has the following attendance record of 40 students of a class of for the whole term . Find the mean number of days a student was present out of 56 days in the term . {:("Number of days","Number of students"),(35-38,1),(38-41,3),(41-44,4),(44-47,4),(47-50,7),(50-53,10),(53-56,11):}

In a certain college, 25% of the boys and 10% of the girls are studying mathematics. The girls constitute 60% of the student strength. If a student selected at radom is found studying mathematics, find the probability that the student is a girl.

In a certain college, 25% of the boys and 10% of the girls are studying mathematics. The girls constitute 60% of the student strength. If a student selected at random is found studying mathematics, find the probability that the students is a girl.