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15 May 2018, 06:35
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I am generally perplexed by the following question types & don't have a concrete strategy to solve them.
I) Must be True
II) Maybe True
III) Could be True
IV) Always True
V) Cannot be True
The question types usually have three expressions or the expressions themselves are the answer choices. Need to understand the difference between them & the number of test cases i should test to satisfy them.
The most difficulty i face is when the questions involve inequations & requires testing numbers. I do follow the (>1, 1 to 0, 0, 0 to -1, -1, <-1) number testing approach, however it is too time consuming sometimes.
Has anyone devised a solid strategy to hit these questions outta the park?
I am sure there are others who find these questions challenging.
Requesting the Quant experts (Bunuel mikemcgarry VeritasPrepKarishma EgmatQuantExpert MathRevolution to kindly chime in & help out.
Thanks
GyMrAT
I) Must be True
II) Maybe True
III) Could be True
IV) Always True
V) Cannot be True
The question types usually have three expressions or the expressions themselves are the answer choices. Need to understand the difference between them & the number of test cases i should test to satisfy them.
The most difficulty i face is when the questions involve inequations & requires testing numbers. I do follow the (>1, 1 to 0, 0, 0 to -1, -1, <-1) number testing approach, however it is too time consuming sometimes.
Has anyone devised a solid strategy to hit these questions outta the park?
I am sure there are others who find these questions challenging.
Requesting the Quant experts (Bunuel mikemcgarry VeritasPrepKarishma EgmatQuantExpert MathRevolution to kindly chime in & help out.
Thanks
GyMrAT
GyMrAT
Note a few things:
"Must be True" and "Always True" are the same.
"May be true" and "Could be true" are the same.
"Cannot be true" might actually be a very simple question type since all you have to do is find one instance in which it is true to reject it. Though it is certainly rare to see this.
Must be true is the most common type out of these. I have written a post describing "must be true" question types here: https://anaprep.com/algebra-game-must-b ... questions/
"Must be true" and "Could be true" questions using inequalities are discussed here: https://anaprep.com/algebra-must-be-tru ... questions/
15 May 2018, 14:26
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GyMrAT
Good question.
Here is how I approach it:
I) Must be True - Same as IV below
II) Maybe True - Same as III below
III) Could be True - Same as II above
IV) Always True - Same as I above
V) Cannot be True - Not same as anything above
For Must be true or Always true, you need to find an answer that cannot be made false, or said differently has to satisfy the equation/quantity in question. On the flip side, a could be true or may be true basically says that the answer may or may not be true.
Note that Cannot be true is the same as Must be true, except it is negated.
As far as strategy, I've found that plugging in smart numbers always helps. What do I mean by smart? If the answer choices are all multiples of 3, do not pick 100.
Does this help?
