No of words formed from the letters of the word 'SUNDAY' starting with 'S' are:

Options

A. 720
B. 600
C. 240
D. None of these

Answer

To find the number of words that can be formed from the letters of the word "SUNDAY" starting with 'S', we can follow these steps:

### Step 1: Identify the total letters in "SUNDAY"
The word "SUNDAY" consists of 6 letters: S, U, N, D, A, Y.

**Hint:** Count the letters in the word to determine how many letters you have to work with.

### Step 2: Fix the first letter
Since we want the words to start with 'S', we fix 'S' as the first letter. This leaves us with the remaining letters: U, N, D, A, Y.

**Hint:** When a letter is fixed at a certain position, the remaining letters can be rearranged.

### Step 3: Count the remaining letters
After fixing 'S', we have 5 letters left: U, N, D, A, Y.

**Hint:** Always remember to count how many letters remain after fixing one.

### Step 4: Calculate the arrangements of the remaining letters
The number of ways to arrange the 5 remaining letters (U, N, D, A, Y) is given by the factorial of the number of letters. Therefore, we calculate 5! (5 factorial).

5! = 5 × 4 × 3 × 2 × 1 = 120

**Hint:** Factorial notation (n!) represents the product of all positive integers up to n.

### Step 5: Conclusion
Thus, the total number of words that can be formed from the letters of the word "SUNDAY" starting with 'S' is 120.

**Final Answer:** 120

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