20-04-2012, 12:50 PM
CODING AND DECODING
CODING AND DECODING.ppt (Size: 103.5 KB / Downloads: 83)
Another set of questions , which often appear in the competitive examinations are related to coding and decoding. In such questions, you are required to decipher a given code by applying some rule(which you have to determine from the example given in the question) and then either encode another code or decode a code given in the question.
The questions on coding and decoding may be in other formats also as illustrated below.
Three enemy messages were intercepted at a CRPF H.Q. The message was decoded and it was found that Mising letis Zerox, means secret attack Sunday and tycoon fox letis means secret plans included and yphen mising tiger cage means Sunday victory is ours.
7. What does the code Zerox means here?
8. What does letis stand for?
9. Which is the code for Sunday?
If you carefully read the coded words and their meaning, you will find letis=secret; zerox=attack and mising = Sunday
letis and mising are repeated in each coded message which makes it obvious letis =secret and mising = Sunday. Similarly it is obvious that zerox stands for attack.
There are no rules governing such questions. Only careful analysis of the coded and the word they stand for will help you tackle such questions.