Friday, February 11, 2011

Short Method for Input Output Problems(TRICK & TIPS)

Consider the following problem
Input  :   Sale   data  18  23  for  95  then  38
Step I :  data  sale  18  23  for  95  then  38
Step II :  data  95  sale  18  23  for  then  38
Step III :  data  95  for  sale  18  23  then  38
Step IV :  data  95  for  38  sale  18  23  then
Step V :  data  95  for  38  sale  23  18  then
Step VI :  data  95  for  38  sale  23  then  18
And step VI is last step

Now short approach to solve this is not to see whole pattern but directly see the last step. Generally it will arrange words according to dictionary in forward or reverse manner
and digits also in ascending or descending form. It could be any pattern given by the examiner, but in almost all cases you will be able to figure out the pattern by watching the
last step only
In this question we can see in last step that ENGLISH alphabets are in dictionary order starting from
A to Z and numbers are in descending order, so our half work is done… as we know the pattern of the arrangement i.e. first an english letter with higher order, then highest
number, then english letter in ascending number, then number just less than highest number and so on…….
One more step is to see that words are arranged in each step by shifting or swaping
Shifting : shifting means tat desire numberor alphabet comes to its place and all the words and letters are shifted as it is after that word

For eg
data  goat solo eat her zoo
now eat has to come before goat so we shift it as
data eat (goat solo her zoo) arranged as it is
Swapping : In this type one word is replaced by other one

For eg
Data goat solo eat her zoo
We swap it as
Data eat solo goat her zoo
(here eat and goat are interchanged)
Now as per the present scenario we mostly have shifting type of pattern and we have a short trick for it to find answers of question
If it is given in question that Second step of input is so and so find fifth step, so in these question instead of solving it completely, we can see that if given step is second step
so AT LEAST two words are already arranged  so look at the given stucture that if 2 or 3 or how many words are arranged after that instead of writing it step by step cut the
words with PENCIL which are arranged and then cut the next word which should come next and increase the counter of the steps i.e. step 3 in your mind, then cut next word that
should come in the arrangement and increase step counter. One thing that is to be noted that is you should not worry about the arrangement that should come after shifting
because after cutting the word in the arrangement, the uncut words will always make correct pattern after shifting.
In some cases the required word or number which is to be arranged is first letter in the first letter of the resulting arrangement, in this case we will cut tha word or number but
we will not increase the step counter as we do not have to shift it anywhere, it was already at its place
For eg
It is given that first step of the arrangement is
Data eat solo goat her zoo
Then according to the rule at least one word is already in its place i.e. data is in its correct place, now we check the next letter EAT, and we find that this too is on its correct
place so 2 letters are already arranged
Data eat solo goat her zoo (Step I)
so we first cut these words and proceed forward to check out next letter in the arrangement, and we find that next letter should be GOAT, so we cut it and increase the step
counter so it will be our Step II.
Data eat solo goat her zoo (Step II)
Then next word should be HER so we cut that letter and increase the counter by one and it becomes step number III
Data eat solo goat her zoo (Step III)
After step III we find our next letter of the arrangementwhich should be SOLO, so we will cut that letter BUT COUNTER FOR STEP NUMBER WILL NOT INCREASE because it is
already in its place. So we are still on step III.
Data eat solo goat her zoo (Step III)
After this we will look out for next letter which is ZOO, so we will cut it and this time also we will not increase the step counter as it is also on its correct place.
Data eat solo goat her zoo (Step III)
* Generally there is a question in which it is asked that step III or any step of the arrangement is so and so, then he asks any of the previous steps than step III or whichever
step is given, step I or step II in this case. In these question the answer will be CANNOT BE DETERMINED.
Explanation : For these type of question answer will be CBD as we can see in above example also that the word which is to be arranged can come from any where i.e. its
position could be anywhere in the given pattern before actual arrangement, we can see that goat comes before solo in the above example after actual arrangement, but in the
provided input it was after SOLO, so position of any word cannot be determined in previous step and hence we cannot find pattern of previous step.

 think i made myself very clear with this method. Still if any1 has any query or problem then he/she can ask anytime. One thing is for sure it will save lot of your time in
reasoning section, so learn it and then practice and you will see the result soon.


  1. Hi thanks for postings short trick for solving this type of questions.But I want to know what is the actual procedure solve this type of questions it makes me to get more clear idea about this.Please post that procedure also.


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