Three different numbers are selected at random from the set `A = (1, 2, 3,...., 10).` The probability that the product of two of the numbers is equal to the third is

Three different numbers are selected at random from the set A={1,2,3,……..,10} . Then the probability that the product of two numbers equal to the third number is (p)/(q) , where p and q are relatively prime positive integers then the value of (p+q) is :

Three different numbers are selected at random from the set A={1,2,3,……..,10} . Then the probability that the product of two numbers equal to the third number is (p)/(q) , where p and q are relatively prime positive integers then the value of (p+q) is :

A number is selected at random from the set {1, 2, 3, …, 50}. The probability that it is a prime, is

A number is selected at random from the set {1, 2, 3, ........ , 50}. The probability that it is a prime, is

Three numbers are selected simultaneously from the set (1,2,3,...,25). The probability that the product of the selected numbers is divisible by 4 is equal to

Two different numbers are selected at random from the set S={1, 2, 3, ……10}, then the probability that sum of selected numbers is divisible by 2 a/b, where a and b are co-prime then b is equal to ___.

Two different numbers are selected at random from the set S={1, 2, 3, ……10}, then the probability that sum of selected numbers is divisible by 2 a/b, where a and b are co-prime then b is equal to ___.

Two distinct numbers are selected from the numbers 1,2,3,...9. Then probability that their product is a perfect square is

Three integers are selected simultaneously from the set of integers {1,2,3,...,50 .The probability that the selected numbers are consecutive is equal to