Read the following line graph carefully and answer the questions given below. The line graph shows the number of product sold in five different shops A, B, C, D, and E.

Find the ratio of the number of products sold by A to that of B.

The correct option is 2:3.

From the given line graph titled "Number of Product Sold", we can observe the data points for each shop along the vertical axis:

- Number of products sold by Shop A = 120
- Number of products sold by Shop B = 180
- Number of products sold by Shop C = 150
- Number of products sold by Shop D = 210
- Number of products sold by Shop E = 170

We are required to find the ratio of the number of products sold by shop A to that of shop B.

$\text{Required Ratio}=\frac{\text{Number of products sold by A}}{\text{Number of products sold by B}}$

Substitute the values from the graph into the formula:

$\text{Required Ratio}=\frac{120}{180}$

Simplifying the fraction by dividing both the numerator and the denominator by their greatest common divisor, 60:

$\text{Required Ratio}=\frac{2}{3}=2:3$

Thus, the ratio of the number of products sold by shop A to that of shop B is 2:3.