The sum of two positive numbers is 100. The probability that their product is greater than 1000 is

The sum of two positive numbers is 10. The probability that their product is greater than 20 is

The sum of two positive quantities is equal to 2n. The probabilities that their product is not less than 3/4 times their product when they are equal is

The sum of two natural numbers m and n equal to 100 .The probability that their product being greater than 1600 is

The sum of two non-negative numbers is 2a. If P be the probability that the product of these numbers is not less than m times their greatest possible product, then

If then sum of two positive numbers in constant then show that their product is maximum when they are equal.

If the sum fo two positive numbers is 20 then show that the maximum value of their product is 100.

The sum of any two positive integers is greater than both the integers.