Solve: `(20div5)div2+(16div8)xx2+(10div5)xx(3div2)=`

Options

A. 9
B. 12
C. 15
D. 18

Answer

To solve the expression `(20div5)div2+(16div8)xx2+(10div5)xx(3div2)`, we will follow the order of operations, often remembered by the acronym BODMAS (Brackets, Orders, Division and Multiplication (from left to right), Addition and Subtraction (from left to right)).

### Step-by-Step Solution:

1. **Calculate the divisions and multiplications inside the parentheses:**
- \( 20 \div 5 = 4 \)
- \( 16 \div 8 = 2 \)
- \( 10 \div 5 = 2 \)
- \( 3 \div 2 = 1.5 \)

Now we can rewrite the expression:
\[ (4) \div 2 + (2) \times 2 + (2) \times (1.5) \]

2. **Perform the division and multiplication:**
- \( 4 \div 2 = 2 \)
- \( 2 \times 2 = 4 \)
- \( 2 \times 1.5 = 3 \)

Now our expression looks like this:
\[ 2 + 4 + 3 \]

3. **Perform the addition:**
- \( 2 + 4 = 6 \)
- \( 6 + 3 = 9 \)

Thus, the final answer is:
\[ \boxed{9} \]