If the total laptops sold by E is 20% more than that of by A, then find the difference between the total laptops sold by E and B.

Read the following pie chart carefully and answer the questions given below. The following pie chart shows the percentage distribution of laptops sold by four persons A, B, C and D.

The correct answer is 9.

Step 1: Analyze the given pie chart data.
From the provided pie chart image, we observe the following values:
- Total laptops sold = 150
- Percentage sold by B = 30%
- Percentage sold by C = 12%
- Percentage sold by D = 38%

First, calculate the percentage of laptops sold by person A. Since the total percentage distribution in the pie chart must equal 100%:

$\text{Percentage for A}=100\%-(38\%+30\%+12\%)=100\%-80\%=20\%$

Step 2: Calculate the number of laptops sold by A and B.

Number of laptops sold by A:

$\text{Laptops sold by A}=20\%\text{of}150=\frac{20}{100}\times 150=30$

Number of laptops sold by B:

$\text{Laptops sold by B}=30\%\text{of}150=\frac{30}{100}\times 150=45$

Step 3: Calculate the number of laptops sold by E.
It is given that the total laptops sold by E is 20% more than that sold by A:

$\text{Laptops sold by E}=30+(20\%\text{of}30)=30+6=36$

Step 4: Find the difference between the total laptops sold by E and B.

$\text{Difference}=45-36=9$

Therefore, the difference between the total laptops sold by E and B is 9.