Page 110 - Services Selection Board (SSB) Interviews

106 Input Output

Concept Deviator

1. (d) any two of the statement given sufficient to answer the questions.
2. (a)
3. (b)
Solution for 4 to 7
4. (a) This type of question we should solve by observing the pattern in which steps are changing, after a close look
we can observe that it is the sum of the digits that plays main role here rather than the number itself. The given
input and steps we can describe as:

Input 245(11) 316(10) 436(13) 519(15) 868(22) 710(8) 689(23)
Step 1 710(8) 316(10) 436(13) 519(15) 868(22) 245(11) 689(23)
Step 2 710(8) 316(10) 245(11) 519(15) 868(22) 436(13) 689(23)
Step 3 710(8) 316(10) 245(11) 436(13) 868(22) 519(15) 689(23)
Step 4 710(8) 316(10) 245(11) 436(13) 519(15) 868(22) 689(23)
From this given data we can observe the pattern that the number that has lowest sum of digits shifts its position towards
left and this process continues.
Now in this case the table will be as follows:
Input 655(16) 436(13) 764(17) 799(23) 977(23) 572(14) 333(9)
Step 1 333(9) 436(13) 764(17) 799(23) 977(23) 572(14) 655(16)
Step 2 333(9) 436(13) 572(14) 799(23) 977(23) 764(17) 655(16)
Step 3 333(9) 436(13) 572(14) 655(16) 977(23) 764(17) 799(23)

rd
So the given sequence is the 3 step.
5. (b) Following the similar logic as above we will find that it takes 5 steps.
6. (d) In this type of question backward progress is not a right approach as the number whose sum is smallest
interchange its position, and there is only one shift per step hence given any step we can not determine the input.
7. (c)
Solution for 8-10
st
Observe the given pattern closely and we will find that neither the number of alphabets nor the 1 letter plays the main
role but it is the last letter that plays the important role, and we can observe that last letter is in reversing order,
8. (b) The last step can be written directly following the pattern discussed above. So for the input “He is going out to
search air”, the last step would be “out is air to search going he”.
9. (d) As we have discussed in question number 26, we can’t calculate previous steps
10. (d) Here the steps will be-

Input: Father needs to check on the boy
Step I: Boy father needs to check on the
Step II: Boy needs father to check on the
Step III: boy needs father to on the check.
Step III will be the final output of the given input. Hence machine will need three steps to make it.
Solution for 11 to 13
Continuation of the given information is as follows:
Step (9) → 3 4 1 2 5 6 9 10 7 3
Step (10) → 1 2 3 4 5 6 7 8 9 10
Step (11) → 1 2 3 4 5 6 9 10 7 8