Three different numbers are selected at random from the first 15 natural numbers. What is the probability that the product of two of the numbers is equal to third number?

​Correct relation for the numbers 10, 7, 8, 5, 6, 8, 5, 8, 6 is:​

​If mean of a variable X is M, then mean of variable Y = (X – 4)/5 will be:​

​Number of circles through a pair of given points​

​If perimeters of a square, circle and equilateral triangle are same, then minimum area will be, of:​