Question

A box contains 100 tickets numbered `1,2,3......100`. Two tickets are chosen at random. It is given that the maximum number on the two chosen tickets is not more than 10. The minimum number on them is 5, with probability Select the correct answer from above options

Answer 1

Correct Answer - A Let A be the event that the maximum number on the two chosen tickes is not more than 10, and B be the event that the minimum number on them is 5 `:." "P(AnnB )=(""^(5)C_(1))/(""^(100)C_(2))` and `" "P(A)=(""^(10)C_(2))/(""^(100)C_(2))` Then `" "P((B)/(A))=(P(AnnB))/(P(A))` `=(""^(5)C_(1))/(""^(10)C_(2))=(1)/(9)`