What will come in place of the question-mark (2) in the following questions?
`86 xx 5*6 xx 0*3 = ?`

Options

A. `144*48`
B. `149*34`
C. `145*26`
D. `146*76`

Answer

To solve the equation \( 86 \times 5.6 \times 0.3 = ? \), we will perform the multiplication step by step.

### Step 1: Multiply \( 5.6 \) and \( 0.3 \)
First, we will multiply \( 5.6 \) by \( 0.3 \).

\[ 5.6 \times 0.3 = 1.68 \]

### Step 2: Multiply the result by \( 86 \)
Now, we will take the result from Step 1 and multiply it by \( 86 \).

\[ 86 \times 1.68 \]

To perform this multiplication, we can break it down:

1. Multiply \( 86 \) by \( 1.68 \):
- \( 86 \times 1.68 = 86 \times (1 + 0.68) \)
- \( 86 \times 1 = 86 \)
- \( 86 \times 0.68 = 58.48 \) (You can calculate this by multiplying \( 86 \) by \( 68 \) and then dividing by \( 100 \))

Now, add these two results together:

\[ 86 + 58.48 = 144.48 \]

### Final Answer
Thus, the result of \( 86 \times 5.6 \times 0.3 \) is:

\[ \boxed{144.48} \]