coding and decoding of reasoning questions part 2
As we have discussed the first two types in our previous posts, here we are discussing the 3rd and 4th types of coding and decoding in reasoning questions
1. 3. Number-Symbol coding
In these types of questions, letters and numbers are made related to each other. These are of two types
1. When numerical/symbol codes are assigned to words
Ex. If REQUEST is written as S2R52TU, then how will ACID be written?
Sol. In this question, alternate letters are moved to next letter in alphabet series and vowels are written as their position in their own series.
Eà2 (A-1, E-2, I-3, O-4, U-5)
Means ACID will be coded as 1D3E
2. When alphabetical codes are assigned to numbers
In this type of questions, different words are coded in a certain symbol. We have to encode them as per the conditions given in the questions. So read the conditions very carefully and then try to solve these type of questions.
4 Substitution based question- in substitution based questions, three types of question are basically asked.
In first type of questions, the letters are directly coded in the same pattern as per the given examples and we have to form the letters as per those given letters changes.
Ex. If EARTH is coded as QPMZS, then how would HEART be coded?
The main detection point of these questions is that the word that is asked to be coded will contain those same alphabets as given in the first sentence. So in this example, the letters of EARTH and HEART are same, so HEART will be coded as SQPMZ
In the second type of questions, each letter is moved certain steps forward to obtain the corresponding letter of the code.
Ex. In a certain code, VICTORY is written as YLFWRUB, then how will SUCCESS be written in that language?
Sol. In this question, every letter is moved three step forward in their position in the alphabetical series to obtain the corresponding letter of the code.
In the third type of questions, the letter are arranged opposite to the position of them in the alphabetical series. The rule is as under
A-Z, B-Y, C-X, D-W, E-V, F-U, G-T, H-S, I-R, J-Q, K-P, L-O, M-N, N-M, O-L, P-K, Q-J, R-I, S-H, T-G, U-F, V-E, W-D, X-C, Y-B, Z-A
Memorize this series on your fingertips for easy solution of the problems.
Ex. In a certain language, MILK is written as NROP, how will DEAF be written
Sol. First you have to find out the question type. Now MILK is written as NROP. You can understand if you have memorized the series given above that N is opposite to M, R is opposite to I, O is opposite to L and P is opposite to K. Now as per the rule given above this question, D is opposite to W, E is opposite to V, A is opposite to Z and F is opposite to U. so DEAF will be coded as WVZU.