What value should come in place of the question mark (?) in the following questions?
`31div 3 xx 15=`?

Options

A. 180
B. 140
C. 165
D. 155

Answer

To solve the question \( 31 \div 3 \times 15 = ? \), we will follow the order of operations, often remembered by the acronym BODMAS (Brackets, Orders, Division and Multiplication, Addition and Subtraction).

### Step-by-Step Solution:

1. **Identify the operations**: The expression involves division and multiplication. According to the BODMAS rule, we perform division and multiplication from left to right.

2. **Perform the division**:
\[ 31 \div 3 = 10.3333 \quad (\text{or } \frac{31}{3}) \]

3. **Multiply the result by 15**:
\[ 10.3333 \times 15 \]
To calculate this, we can break it down:
\[ 10.3333 \times 15 = 155 \]

4. **Final result**:
\[ ? = 155 \]

Thus, the value that should come in place of the question mark (?) is **155**.