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Shortcuts to solve Input Output Questions in Reasoning exams http://www.cetking.com/snapnmat/all-about-nmat/input-output-ques...
1 of 7 25-05-2013 15:50
Home SNAP & NMAT All about NMAT Input Output Questions
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Shortcuts to solve Input Output Questions in Reasoning exams http://www.cetking.com/snapnmat/all-about-nmat/input-output-ques...
2 of 7 25-05-2013 15:50
Input OutputQuestions Input Output Questions
These types of questions regularly come in the competitive
examinations. Although they may look complex but they are
not so tough. Only factor in that they are time-consuming
and time is premium in a competitive test these days.
What is this
Generally one is asked to imagine that there is some kind of
computer or Machine. This machine have to given a
instruction to perform certain kind of action in each step
after that is gave a desire output.
Consider the following Input Output Questions 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
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
XXXX
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
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Shortcuts to solve Input Output Questions in Reasoning exams http://www.cetking.com/snapnmat/all-about-nmat/input-output-ques...
3 of 7 25-05-2013 15:50
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
Shortcuts to solve Input Output Questions in Reasoning exams http://www.cetking.com/snapnmat/all-about-nmat/input-output-ques...
4 of 7 25-05-2013 15:50
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 ornumber 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.
Shortcuts to solve Input Output Questions in Reasoning exams http://www.cetking.com/snapnmat/all-about-nmat/input-output-ques...
5 of 7 25-05-2013 15:50
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.
Shortcut Guideline to solve Input Output Questions
(1) 1st see output then input because without knowing what
is final result you may be confused.
Let suppose there is a pen it made with ink, nib, plastic
cover etc. first if you will see the pen then you imagine how
this pen made. Otherwise you have to give ink, nib plastic
cover than you not imagine what happened. So, 1st step
should be see the output.
(2) 2nd step is the see input.
(3) 3rd step is see other steps that how the output formed.
Remember for Input Output Questions
(1) We cannot find previous step means if 5th step or
4th step is given and we have to find out 3rd, 2nd and input.
Then we cannot find it. So, our answer will be Cannot be
determined
Shortcuts to solve Input Output Questions in Reasoning exams http://www.cetking.com/snapnmat/all-about-nmat/input-output-ques...
6 of 7 25-05-2013 15:50
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Shortcuts to solve Input Output Questions in Reasoning exams http://www.cetking.com/snapnmat/all-about-nmat/input-output-ques...
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