In IBPS exams we can accept input output questions in logical reasoning section From the Input- Output section good number of questions have been asked in previous IBPS exams and also in RRB exams . We can accept nearly 5 questions based on input output series method. So understanding the concept of input output series method is very important
Q: A word and number arrangement machine when given an input line of words and numbers rearranges them following a particular rule .Following is the illustration of input and rearrangement
Q: A word and number arrangement machine when given an input line of words and numbers rearranges them following a particular rule in each step. The following is an illustration of input and rearrangement.
Input: gone name 43 39 18 for again 66
Step 1 : 66 gone name 43 39 18 for again
Step 2 : 66 again gone name 43 39 18 for
Step 3 : 66 again 43 gone name 39 18 for
Step 4 : 66 again 43 for gone name 39 18
Step 5 : 66 again 43 for 39 gone name 18
Step 6 : 66 again 43 for 39 gone name 18
Step 7 : 66 again 43 for 39 gone 18 name
As per the rule followed in the above steps find out in each of following questions the appropriate steps for the input given below
In this input output method we are supposed to imagine that input is fed to machine . Machine process the input and arrange the input in each step
and produce the final output in the final step We have to determine the pattern and based on that solve the questions. A word and number arrangement machine when given an input line of words and numbers rearranges them following a particular rule in each step to produce final output
In this machine arrangement can be of following types
1) Numeric numbers arranging in decreasing order in each step
2) Words arranging in alphabetic order from A-Z
3) In series there is both numeric and alphabetic words, so in one step number is arrange in decreasing order and in other step word is arrange in alphabetic order from A-Z.
4) Number can be arrange by odd and even numbers. Odd numbers are arrange in decreasing order than even number in decreasing order.
5) Words are arrange in alphabetic order in extreme left and numbers are arrange in decreasing order at extreme right in each step
6) First words are arrange in alphabetic order than numbers are arrange in decreasing order.
We have given few examples which help you to better understand the input output questions
Before starting must read My previous two posts
Problem :1
Q:- An Input /Output device arranges numbers step-by-step in a particular order according to a set of rules. The device stops arranging the numbers when the final result is obtained. –
Input- 94 65 35 100 54 69
Step 1 100 94 65 35 54 69
Step 2 100 94 69 65 35 54
Step 3 100 94 69 65 54 35
As per the rules followed in the above steps, find out in each of the following question the appropriate steps for the input given below :
Study the above arrangement carefully and give the answer to the following question –
What is the last step of the input given below?
8 70 90 17 35 40
Solution :
Based on the above series find the last step of the given arrangement. You will easily find out that the numbers are arranged in descending order. In the step 1 higher number i.e. 100 is arranged come first , only one element in each step is arranged .Than in step 2, 94 is already arranged so 69 which is third highest number comes and so on .
Following these steps we have to find steps required to completed the above arrangement .
Input 8 70 90 17 35 40
Step1 90 8 70 17 35 40
Step2 90 70 8 17 35 40
Step3 90 70 40 8 17 35
Step4 90 70 40 35 8 17
Step5 90 70 40 35 17 8
Answer: So 5 steps are required to complete the given arrangement . and from above we can tell last step i.e. 90 70 40 35 17 8
Problem :2
Input : lock come apple them done square
Step1 apple lock come them done square
Step2 apple come lock them done square
Step3 apple come done lock them square
Step4 apple come done lock them square
Step5 apple come done lock square them
As per the rule followed in the above steps find out in each of following questions the appropriate steps for the input given below
Input: hand sand major your watch action
Q:1 How many steps would be needed to complete the arrangement
Solution :From the above input output series we have to carefully see the pattern how the words are arranging in each step .Based on that we have arrange the words in each step and get final output .As in above pattern words are arranging in alphabet order A-Z in each step. So we can get final output based on that
Input: hand sand major your watch action
Step1 action hand sand major your watch
Step2 action hand major sand your watch
Step3 action hand major sand watch your
As in step2 hand is already arrange in alphabet order so we arrange the next word in alphabet order in same step
So THREE steps are required to complete the given arrangement
Problem :3
Input: gone name 43 39 18 for again 66
Step 1 : 66 gone name 43 39 18 for again
Step 2 : 66 again gone name 43 39 18 for
Step 3 : 66 again 43 gone name 39 18 for
Step 4 : 66 again 43 for gone name 39 18
Step 5 : 66 again 43 for 39 gone name 18
Step 6 : 66 again 43 for 39 gone name 18
Step 7 : 66 again 43 for 39 gone 18 name
As per the rule followed in the above steps find out in each of following questions the appropriate steps for the input given below :
· Input: their 19 27 dent are 91 hour zero 31 16 chairs.
Which of the following will be step 4 ?
Which of the following will be step 4 ?
A) 91 are 31 their 19 27 dent hour zero 16 chairs
B.) 91 their 19 27 dent are hour zero 31 16 chairs
C.) 91 are 31 chairs their 19 27 dent hour zero 16
D.) 91 are 31 chairs 27 dent 19 their hour zero 16
B.) 91 their 19 27 dent are hour zero 31 16 chairs
C.) 91 are 31 chairs their 19 27 dent hour zero 16
D.) 91 are 31 chairs 27 dent 19 their hour zero 16
Solution 1 : From the above arrangement pattern we find that it consist of two series the numeric number series and alphabet series . The numeric numbers are arranged in decreasing order and alphabet are arranged with first alphabet of every word from A-Z alphabet which appear first to lower down in series and in one step number is arranged and in other step a word is arranged .
Input: their 19 27 dent are 91 hour zero 31 16 chairs
Step1 91 their 19 27 dent are hour zero 31 16 chairs
Step2 91 are their 19 27 dent hour zero 31 16 chairs
Step3 91 are 31 their 19 27 dent hour zero16 chairs
Step4 91 are 31 chairs their 19 27 dent hour zero 16
Step5 91 are 31 chairs 27 their 19 dent hour zero 16
Step6 91 are 31 chairs 27 dent their 19 hour zero 16
Step7 91 are 31 chairs 27 dent 19 their hour zero 16
Step8 91 are 31 chairs 27 dent 19 hour their zero 16
Step9 91 are 31 chairs 27 dent 19 hour 16 their zero
So from above arrangement we can tell what the possible arrangement in step 4
Answer –C
2.Which of the following would be final arrangement ?
A) 91 are their 27 19 dent hour zero 31 16 chairs
B) 91 are 31 chairs 27 dent 19 hour 16 their zero
C) 91 are 31 chairs 27 19 dent hour 16 their zero
D) 91 are 31 chairs 27 dent 19 zero hour 16 their
Answer – B , We can easily find out the step four from the above.
3.Which of the following would be the Step 1 ?
A) 91 their 19 are 27 dent hour zero 31 16 chairs
B) 91 are 31 chairs 27 dent 19 hour 16 their zero
C) 91 are 31 chairs 27 19 dent hour 16 their zero
D) 91 chairs are 31 27 dent 19 zero hour 16 their
E) Non of these
Answer : E) Non of these .As none of given options matches with Step 1
Problem: 4
Q: A word and number arrangement machine when given an input line of words and numbers rearranges them following a particular rule in each step. The following is an illustration of input and rearrangement
Input: sap 28 have 18 99 48 luck nice 78 ramp
Step1 have sap 28 18 48 luck nice 78 ramp 99
Step2 luck have sap 28 18 48 nice ramp 99 78
Step3 nice luck have sap 28 18 ramp 99 78 48
Step4 ramp nice luck have sap 18 99 78 48 28
Step5 sap ramp nice luck have 99 78 48 28 18
Input: 49 late zen 15 82 yet can vast 33 alt 87 54
Q:1 How many steps would be needed to complete the arrangement?
1) IV 2) V 3)VI 4)VII 5)Non of these
Solution : From careful analysis of the given input , various steps of rearrangement in step 1 word which will appear first in dictionary is placed at extreme left position and highest number is placed in extreme right position . In step 2 word which appear second place in dictionary is placed at extreme left and second highest number is placed at extreme right .same is followed in all next steps
Input: 49 late zen 15 82 yet can vast 33 alt 87 54
Step 1 alt 49 late zen 15 82 yet can vast 33 54 87
Step2 can alt 49 late zen 15 yet vast 33 54 87 82
Step3 late can alt 49 zen 15 yet vast 33 87 82 54
Step4 vast late can alt zen 15 yet 33 87 82 54 49
Step5 yet vast late can alt zen 15 87 82 54 49 33
Step6 zen yet vast late can alt 87 82 54 49 33 15
Answer : 3) VI
Q2:Which step number would be the following output :
Vast late can alt zen 15 yet 33 87 82 54 49
1) III 2)II 3) VII 4)IV 5) None of these
Solution : From the above series we can find out which is the step
Answer : 4 ) IV
