four letter words that end in n

What is the probability of not selecting the letter N from the word PENNSYLVANIA ? => 1 3 or 5 6 or 2 3 or 3 4..

How many meaningful 4-letter words are there in the list of all possible arrangements of the letters in the word EARN, if each letter is used only once? => 5 or 1 or 3 or 2..

Find the number of 4 letter words that can be made using the alphabets, if repetition of a letter is not allowed. => 1 3 1 1 ! or 2 6 ! 2 2 ! or 1 3 1 1 or 2 6 ! 4 !..

A box contains all the letters of the word U N D E R S T A N D. What is the probability of selecting an 'N' first and a 'D' next, if the first letter is replaced? => 3 50 or 1 25 or 1 10 or 2 5..

How many different 4-letter non-meaningful words can be formed by using the letters R, E, A and D, if each letter is used only once? => 24 or 3 or 21 or 16..

What fraction of the letters in the word MISSISSIPPI is I's? => 4 11 or 3 4 or 3 10 or 3 11..

One letter is chosen at random from the word "MISSISSIPPI". What is the probability of choosing the letter S? => 2 11 or 3 11 or 1 11 or 4 11..

Find the fraction of the letter S to the number of letters in the word M I S S I S S I P P I . => 2 11 or 4 11 or 1 11 or None of the above..

How many 4 letter permutations can be made from the set {B, O, U, N, C, E} so that they all start with the letter B, and repetition of a letter is not allowed? => 60 or 20 or 30 or 24..

Identify the letter placed in the middle of the word SNAKE . => N or A or K or E..