Answer:
"Peter makes $1/8 for every pencil he sells. Yesterday he made $3 by selling pencils, how many of them he sold? "
Explanation:
Modeling of Reality
Sometimes we have a real situation and we want to provide a mathematical model to explain it. But what if we have the model and need to imagine what the situation could be? It calls for our imagination and tries to figure out such a problem, given the answer
We can see a question mark multiplying the fraction 1/8 to produce a result of 3. This is a common proportion problem. This is my approach
"Peter makes $1/8 for every pencil he sells. Yesterday he made $3 by selling pencils, how many of them he sold? "
If we solved this question, we have to replace the ? for 24 and say Peter sold 24 pencils and made 24(1/8)=$3