Question

In a group of students, 100 students know Hindi, 50 know English and 25 kno
both. Each of the students knows either Hindi or English. How many student
are there in the group?​

Answer 1

Answer:

100+50-25=125

Step-by-step explanation:

I think it is an answer

Answer 2

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.

Step-by-step explanation:

Hope it is helpful