A bag contains 20 tickets numbered from 1 to 20.Two tickets are drawn at random.The probability that both the numbers appearing on the tickets drawn will be prime
Answers
Answered by
21
Prime numbers between 1-20 = { 1, 3, 5, 7, 11, 13, 17, 19}
Total number of Prime numbers = 8
Total number of outlets = 20
Therefore,
P ( Prime number) = 8/20
= 2/5
Hope it helps you :)
Total number of Prime numbers = 8
Total number of outlets = 20
Therefore,
P ( Prime number) = 8/20
= 2/5
Hope it helps you :)
pakhi6:
my pleasure
Answered by
20
Answer:
Step-by-step explanation:
Since prime numbers are : (2,3,5,7,11,13,17,19)
total=8
P(prime) = 8C2
total tickets= 20
P(tickets)= 20C2
P(E)= 8C2/20C2 = 14/95
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