bertha has 6 daughters and no sons. some of her daughters have 6 daughters, and the rest have none. bertha has a total of 30 daughters and granddaughters, and no great-granddaughters. how many of bertha’s daughters and grand-daughters have no daughters?

bertha’s daughtersand granddaughters have no daughters.## What is the unitary method?

unitary methodis a method for solving a problem by the first value of a single unit and thenfindingthe value bymultiplyingthe single value.berthahas 6 daughters and nosons.daughtershave 6 daughters, and the rest have none.berthahas a total of 30 daughters andgranddaughtersand no great-granddaughters.total daughter+grandaughter= 30Betha= 6grand daughter= 30-6 ; 24daughterseachBertha’sdaughters haveno daughtersand all of the granddaughters also don’t havedaughtersbertha’s daughtersand granddaughters have no daughters.unitary method, please visit the link given below;