From 5 apples, 4 mangoes & 3 bananas, in how many ways we can select atleast two fruits of each variety if fruits of same species are identical?

In how many ways we can select 3 letters of the word PROPORTION?

There are 5 mangoes, 3 oranges and 4 bananas. The number of ways of selecting at least one fruit of each kind, is

There are 12 different books in a shelf. In how many ways we can select atleast one of them?

In how many ways we can select 4 letters from the letters of the word MISSISSIPPI?

In how many ways 2 persons can be selected from 4 persons?

In how many ways can 2 doors be selected from 3 doors ?

There are 4 oranges, 5 apples and 6 mangoes in a fruit basket. In how manyways can a person make a selection of fruits from among the fruits in the basket?

In how many ways can 4 letters be posted in 5 letter boxes?

In how many ways can 5 letters be posted in 4 letter boxes?

In how many ways can 4 letters be posted in 5 letter boxes?