Division of objects into group of equal size

Find the number of ways of dividing 20 objects in three groups of sizes 8, 7 and 5.

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

Division Into Groups

Division into Groups

Division into groups | Alike Objects

Assertion First meiotic division in primary oocytes results in the formation of two equal sized cells. Reason Both of these cells are equally functional.