The problem cannot be solved because the cost of one toy car or the cost of a certain number of toy cars is not provided. Therefore, it is impossible to determine the cost of 18 toy cars from the given options.
Explanation
Understanding the Problem We are given a multiple choice question asking for the cost of 18 toy cars. The possible answers are $12, $20, $22, $27. However, we are missing crucial information: the cost of a single toy car or the cost of a specific number of toy cars. Without this information, we cannot determine the cost of 18 toy cars.
Identifying the Missing Information Since we lack the necessary information to calculate the cost, we cannot definitively choose any of the provided answers. The problem is unsolvable with the given data.
Conclusion Therefore, based on the information provided, it is impossible to determine the cost of 18 toy cars from the given options.
Examples
Imagine you're trying to bake a cake but the recipe only tells you the ingredients without specifying the quantities. You know you need flour, sugar, and eggs, but without knowing how much of each, you can't bake the cake. Similarly, in this problem, we know we need to find the cost of 18 toy cars, but without knowing the price of one toy car or a set of toy cars, we can't determine the total cost. This highlights the importance of having complete information to solve a problem, whether it's in math or everyday life.