Arthimetic 3 video gregmat 1 month plan

Hello! Following gregmat’s 1 month prep after completing the i’m overwhelmed plan. I am on the arthimetic 3 video, about 22 minutes in, and im starting to realize i have the tools, but literally have 0 idea how or when to apply them when i need to.
In this problem i looked at the answer choices separately and started wondering what the heck would i do with each individually. I decided to multiple them each by a number to see if there was a difference, and i ran into the issue that Greg decribes in the video.

In short, how am i supposed to arrive at the realization that i should have been taking all the answer choices and multiplying them together to then find the answer? In my head, I did not connect the dots to use product of all the answers choices together to help find my final answer…

I notice I keep getting tripped up and confused about what harder questions want. I feel like i am so used to math questions just telling me what they want.
On the GRE, it feels like I have to be constantly searching through my toolkit or jerryrig something to “work” in my head…and its been rough for me.

Omg youre kidding…was the top part just simply missing in the video? HAHA i really hope so!!!

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