In a school, total number of students in 10 A division is equal to the total number of students in 10 B. One students is to be selected from each division. Number of boys in 10A is 20. The probability of selecting a boy from 10 A is `2/5` and that of from 10 B is `3/5`. How many students are there in 10A?

In a school, total number of students in 10 A division is equal to the total number of students in 10 B. One students is to be selected from each division. Number of boys in 10A is 20. The probability of selecting a boy from 10 A is 2/5 and that of from 10 B is 3/5 .How many boys are there in 10 B?

In a school, total number of students in 10 A division is equal to the total number of students in 10 B. One students is to be selected from each division. Number of boys in 10A is 20. The probability of selecting a boy from 10 A is 2/5 and that of from 10 B is 3/5 .What is the probability of selecting a girl from 10A?

In a school, total number of students in 10 A division is equal to the total number of students in 10 B. One students is to be selected from each division. Number of boys in 10A is 20. The probability of selecting a boy from 10 A is 2/5 and that of from 10 B is 3/5 . What is the probability of both the selected students being boys?

If the number of subsets with two elements of a set P is 10,then find the total number of elements in set P.

25 girls and 20 boys are studying in standard 10 A .20 girls and 15 boys are in 10 B .One student from each division is to be selected for a competition i) What is the probability of getting both are 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 atleast one boy?

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 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 ofone boy and one girl?

In the class leader election, Preetha has got 75% votes. If the total number of students is 40, how many votes has Preetha got?