Question

The number of $4$ letter words with or without meaning that can be made from the letters of the word $MONDAY$, assuming that no letter is repeated is

• A. $360$
• B. $6^4$
• C. $180$
• D. $6^4-1$

Answer 1

The correct option is A $360$

$MONDAY$ has $6$ letters.
$4$ letter wordd are formed using this $6$ letters.
First letter of the word can be choosen in $6$ ways
Second letter in $5$ ways
Third letter in $4$ ways
Fourth letter in $3$ ways
The total number of $4$ letters words
$=6\times 5\times 4\times 3=360$