My question is: There are 28 students in a classroom. Half of them have 5 notebooks each and the other half have 3 notebooks each. How many notebooks in total are in the classroom? Your thoughts:
Half of the class consists of 28 students / 2 = 14 students. One half of the students have 14 students * 3 notebooks / student = 42 notebooks. The other half have 14 students * 5 notebooks / student = 70 notebooks. There are 42 notebooks + 70 notebooks = 112 notebooks in total in the classroom. The final answer: 112.