and other four letter words

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 !..

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..

How many different 4-letter permutations can be formed using the letters in the word 'united' exactly once? => 360 or 15 or 720 or 24..

Which one of these words gives you the number of letters in the box shown? => Seven or Four or Five or Six..

How many 2 letter words can be made using the English alphabets, if repetition of a letter is not allowed? => 13 or 2 6 ! 2 4 ! or 2 ! 2 6 ! or 52..

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..

An assignment was given to six students to write as many words as they can starting with the letter H. The number of words written by each of them were given in the line plot. What is the number of words written by Suzane? => 4 or 9 or 10 or 8..

An assignment was given to six students to write as many words as they can starting with the letter H. The number of words written by each of them were given in the line plot. Find the difference between the number of words written by David and Catherine. => ..

An assignment required six students to write as many words as they can starting with the letter R. The number of words written by each of them were in the line plot. Find the ratio of the number of words written by Suzane to that by Caroll. => 1 : 1 or 4..

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..