Question

HELPPP

1) Among the sets, P = {3,4,5,6} , Q = {0,1,2,3} , R = {5,6,7,8,9}
i) write a pair of disjoint sets
ii)name a pair of equivalent sets

2) Out of the students in the class, 3/7 are girls. If there are 24 boys in the class, find the total number of students in the class.​​

Answer 1

Question 1:

i) A pair of disjoint sets from the given sets are P and Q. Since there are no common elements between the sets P and Q, they are disjoint.

ii) A pair of equivalent sets from the given sets is Q and {0,1,2,3}. They contain the same elements and have the same number of elements.

Question 2:

The number of girls in the class is 3/7 * number of students in the class. Let's say there are n students in the class. Then, 3/7 * n = 3/7 * (24 + n) = 3 girls.

Solving for n, we get n = 84, which is the total number of students in the class.

Explanation: