Question

IN
A GROUP OF STUDENTS,
100 STUDENTS
KNOW HINDI, 50
KNOW ENGLISH AND 25
KNOW
BOTH EACH OF THE STUDENTS
KNOWS EITHER HINDI
OR ENGLISH HOW MANY STUDENTS ARE
THERE IN A
GROUP.
​

Answer 1

Answer:

Bro your question is messed up

Answer 2

Step-by-step explanation:

Answer

Let U be the set of all students in the group.

Let E be the set of all students who know English.

Let H be the set of all students who know Hindi.

∴H∪E=U

Given n(H)=100 and n(E)=50

n(H∩E)=25

n(U)=n(H)+n(E)−n(H∩E)

=100+50−25

Hence, there are 125 students in the group.