1. The problem states that 40 more students like vanilla ice cream than those who do not. 2. From the pie chart, the proportion of students who like vanilla ice cream is represented by 6 slices, and those who do not like it by 4 slices, out of a total of 10 slices. 3. Let the total number of students be $T$. 4. The number of students who like vanilla ice cream is $\frac{6}{10}T = 0.6T$. 5. The number of students who do not like vanilla ice cream is $\frac{4}{10}T = 0.4T$. 6. According to the problem, the difference between these two groups is 40 students: $$0.6T - 0.4T = 40$$ 7. Simplify the equation: $$0.2T = 40$$ 8. Solve for $T$: $$T = \frac{40}{0.2} = 200$$ 9. Therefore, the total number of students asked is 200.