Guys i need your suggestion... i am a bit weak in number properties!! i have seen my speed droping by 60% wen confronted by a number problem. And even if i spend a considerable amount of time for it ,i dont feel confident enough to answer it!!..Please please suggest a way to make tis section strong..thank you!!
Search this forum for NP questions and see how people used logic (as opposed to just plugging in numbers) to solve these problems.
Do the same thing with OG, pay attention to how logic is used to solve these problems.
If all else fails, then plug in to clarify concepts for yourself.
I used to ONLY plug in, and it took a long time. Now, I use a mix of the two, plugging in and logic.












