From the given diagram, determine the difference between the total number of cars sold in the first three years and in the last three years.

Correct option is B

Solution:
Sum of the total no of cars sold in the first 3 years = 150 + 100 + 250 = 500
Sum of the total no of cars sold in the last 3 years = 100 + 300 + 300 = 700
The required difference = 700 - 500
= 200