Question icon
Grade 12Algebra

In a hostel 60% of the students read Hindi newspaper, 40% read English and 10% read both
Hindi and English newspapers. A student is selected at random. Find the probability that:
(i) She reads neither Hindi nor English newspaper.
(ii) If she reads English, find the probability that she reads Hindi newspaper.
What is the conduct one should keep in mind when living in a hostel?

Profile image of Drake
11 Years agoGrade 12
Answers icon

1 Answer

Profile image of God Of Maths
11 Years ago
Considering there are 100 students.
10 read both hindi & english
which means that
50 read only hindi
30 read only english
So total comes to 90.
(i) So the probability that she reads neither hindi nor english newspaper is
10 out of 100 which is 10/100 i.e. 1/10.
(ii) So if she reads English, the probability that she reads Hindi newspaper is
10 out of 30+10 which is 10/40 i.e. ¼.
 
By,
God Of Maths