Division Into Groups,Objects Distinct

Division Into Groups | Distinct Objects

Division into groups | Alike Objects

Division of m+n distinct object into two group of size m and n

Division of objects into group of equal size

Permutations When Objects Are All Distinct|Factorial Notation|Exercise Questions|OMR

Distribution of n distinct objects into r distinct boxes if in each box at least one box is placed

A telescope has an objective of focal length 100 cm and eye piece of focal length 6 cm and the least distance of distinct vision is 25 cm. The telescope is focused for distinct vision of an object at a distance 100 m from the objective. What is the distance of separation between objective and eye piece?

The focal length of objective and eye lens of a microscope are 4 cm and 8 cm respectively. If the least distance of distinct vision is 24 cm and object distance is 4.5 cm from the objective lens, then the magnifying power of the microscope will be

The number of ways in which five distinct objects can be put into three identical boxes so that no box remains empty is