The sum of first 5 multiples of 6 is:

Options

A. 90
B. 54
C. 30
D. 84

Answer

To find the sum of the first 5 multiples of 6, we can follow these steps:

### Step 1: Identify the first 5 multiples of 6.
The multiples of 6 are obtained by multiplying 6 by the integers 1, 2, 3, 4, and 5.
- 1st multiple: \( 6 \times 1 = 6 \)
- 2nd multiple: \( 6 \times 2 = 12 \)
- 3rd multiple: \( 6 \times 3 = 18 \)
- 4th multiple: \( 6 \times 4 = 24 \)
- 5th multiple: \( 6 \times 5 = 30 \)

So, the first 5 multiples of 6 are: 6, 12, 18, 24, and 30.

### Step 2: Add the first 5 multiples together.
Now, we will sum these multiples:
\[ 6 + 12 + 18 + 24 + 30 \]

### Step 3: Perform the addition step by step.
1. First, add 6 and 12:
\[ 6 + 12 = 18 \]
2. Next, add the result to 18:
\[ 18 + 18 = 36 \]
3. Then, add 24 to the result:
\[ 36 + 24 = 60 \]
4. Finally, add 30:
\[ 60 + 30 = 90 \]

### Conclusion
The sum of the first 5 multiples of 6 is \( 90 \).