a bag contains 30 tickets numbered from 1 to 30 five tickets are drawn at random and arrenged in - Maths - Probability

Question

a bag contains 30 tickets numbered from 1 to 30 five tickets are
drawn at random and arrenged in increasing order find the
probability that the third number is 20

Akshaya · Answer

probability of third number to be thirty is:

out of 5 combinations from thirty: 2 numbers are less than 20 that
is 19C2 and two numbers are greater than 20 10C2

P=10C2* 19C2/ 30C5

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a bag contains 30 tickets numbered from 1 to 30. five tickets are drawn at random and arrenged in increasing order find the probability that the third number is 20.