Among the following questions asked by a mathematics teacher, which one is an open ended question?
1
If I have 3 dozen eggs, how many eggs do I have?
2
The product of two whole numbers is 96. What are the possibilities for the two numbers?
3
Johnny was looking through his math book and discovered that after page 44, the next page was 51. How many page sheets were torn out of his book?
4
A jewelry store sold 108 pieces of jewelry in 13 days. How many pieces of jewelry did the store sell each week?