Number in general form |Fun with numbers

Generalized form of numbers

The ratio of the number of general stores and that of the ground is

Number of generations present in Pinus seed are

Three positive numbers form a GP. If the middle number is increased by 8, the three numbers form an AP. If the last number is also increased by 64 along with the previous increase in the middle number, the resulting numbers form a GP again.Then :-

The number of products that can be formed with 8 prime numbers is

A machine generates a two-digit number randomly. Find the probability that the number generated is either less than 25 or greater than 85.