“a+3, b+3, and c-3, are 3 consecutive integers. What is c-a?”
This is from the I am Overwhelmed plan Module 1 Part 4, first video.
I picked a=0, b=-1, and c=7, which yields 3,2,4 (or 2,3,4). I got c-a=7, but the correct answer is 8. I am a bit confused - if I see a question like this on the GRE, can I assume that (a+3), (b+3), and (c-3) are necessarily in the order listed?
I kind of thought that picking numbers would yield the correct difference regardless of order, but I realize now the order for sure matters.
Thank you!
