Permutations And Combinations Ques 10
In a collage of 300 students, every student reads 5 newspapers and every newspaper is read by 60 students. The number of newspapers is 100
(1998, 2M)
(a) at least 30
(b) at most 20
(c) exactly 25%
(d) None of the above
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Answer:
Correct Answer: 10.(c)
Solution:
Formula:
- Let $n$ be the number of newspapers which are read by the students.
$ \begin{aligned} & \text { Then, } \quad 60 n=(300) \times 5 \\ & \Rightarrow \quad n=25 \end{aligned} $
BETA
