4,058 views
45 votes
45 votes

What are the most common mistakes you have made in tests? A good list will help aspirants reduce their mistakes in GATE. Just listing out some common ones.

  1. Missing the “NOT” in question – our eyes have a tendency to focus on important words and miss the “NOT”
  2. Question might be asking “FALSE” statement – again our mind tend to focus more on positive ones and hence ignore “FALSE” in the sentence
  3. $A \implies B$ does not mean $B \implies A$ or $\neg A \implies \neg B.$ (It does mean $\neg A \vee B \equiv \neg B \implies \neg A).$ Usually this mistake is committed in interpreting many statements
  4. Closure property misuse – A set $A $ not closed under operator $*$ means for $a,b \in A, a*b $ MAY or MAY NOT be in $A.$ Many people think it is always NOT in $A$
  5. Missing “0” – when you do large calculations ensure that the final answer is copied exactly without missing any digits – this can happen for Numerical questions
  6. “Unit” – Being aware of the units in the question can ensure you avoid many calculation mistakes. In any formula you do, you must get the correct unit for the result

Please add more as answers. 

9 Answers

4 votes
4 votes
3 votes
3 votes
1- check bandwidth is in kbps or KBPS

2- 1024/32 is not 64 ( imean calculation error)

3- mark answer after reading what is been asked.

4-round properly like 4.59 is 4.6 not 4.5.
2 votes
2 votes
being aware of the notations used. refer the question to justify what is that notation representing in the question.

for eg :- |A| could mean determinant of A or it could also mean cardinality of A.
1 votes
1 votes
If the question marks a quantity as X, we are very much likely to write the final answer as X's vslue even when the question asks something else about X and not its value.  Like in gate 2018, there was a question on MST which marked one edge in graph as X. And then asked what shud be the number of trees with this value of X. A friend of mine calculated X and wrote the same as final answer.

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