What should come in place of question mark (?) in the following questions?
`1.5xx78div0.5=?`

Options

A. 243
B. 234
C. 238
D. 216

Answer

To solve the expression \(1.5 \times 78 \div 0.5\), we can follow these steps:

### Step 1: Rewrite the numbers in fraction form
We can express \(1.5\) and \(0.5\) as fractions:
- \(1.5 = \frac{15}{10}\)
- \(0.5 = \frac{5}{10}\)

### Step 2: Substitute the fractions into the expression
Now we can rewrite the expression:
\[ 1.5 \times 78 \div 0.5 = \frac{15}{10} \times 78 \div \frac{5}{10} \]

### Step 3: Change the division to multiplication
When dividing by a fraction, we multiply by its reciprocal:
\[ = \frac{15}{10} \times 78 \times \frac{10}{5} \]

### Step 4: Simplify the expression
We can simplify the expression step-by-step:
- The \(10\) in the numerator and denominator cancel out:
\[ = \frac{15}{1} \times 78 \times \frac{1}{5} \]
- Now we can simplify \(15\) and \(5\):
\[ = 3 \times 78 \]

### Step 5: Calculate the final multiplication
Now, we multiply \(3\) by \(78\):
\[ 3 \times 78 = 234 \]

### Conclusion
Thus, the value that should come in place of the question mark (?) is:
\[ \boxed{234} \]