Aptitude - Probability - Discussion

Discussion Forum : Probability - General Questions (Q.No. 8)
8.
In a lottery, there are 10 prizes and 25 blanks. A lottery is drawn at random. What is the probability of getting a prize?
1
10
2
5
2
7
5
7
Answer: Option
Explanation:
P (getting a prize) = 10 = 10 = 2 .
(10 + 25) 35 7
Discussion:
25 comments Page 3 of 3.

Abiti said:   3 months ago
Thank you everyone for explaining the answer.
(2)

Priya said:   9 years ago
Total will be 35 as 10 prizes + 25 blanks.

Arumugam said:   1 decade ago
n(s)=35c1
n(e)=10c1
ans=10/35=2/7.

Mohith Valmiki said:   1 month ago
25+ 10 = 35,
10C1/35C1 = 2/7.
(1)

Abhijeet said:   1 decade ago
I can't understand concept.


Post your comments here:

Your comments will be displayed after verification.