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image Online Test 1 (Coding and decoding)

Number of questions : 20  |  Time : 30 minutes

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image Online Test 2 (Coding and decoding)

Number of questions : 20  |  Time : 30 minutes

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image Online Test 3 (Coding and decoding)

Number of questions : 20  |  Time : 30 minutes



Important Notes and Previous Year Questions :

Coding and Decoding:

Free online test providing some useful formulae and hints for Coding and decoding category. Requesting to follow below points.        

A(1)       B(2)        C(3)        D(4)       E(5)        F(6)        G(7)       H(8)       I(9)         J(10)      K(11)     L(12)      M(13)

N(14)     O(15)     P(16)     Q(17)     R(18)     S(19)      T(20)      U(21)     V(22)     W(23)    X(24)     Y(25)      Z(26)

Easy way to remember:

F = FIX = SIX = 6

J = JOCKEY = 10

M = MIDDLE IN ALPHABET = 13 (26/2)

T = TWENTY-TWENTY = 20

 

 Previous year solved questions:

1. In a certain code ROSE is written as #43$ and FIRST is written as 5*#37. How is STORE written in that code?

A) 473$#              B) 473#$               C) 374#$               D) 347#$              E) None of these

Ans: C

Solution: As per question,

                R = #, O = 4, S = 3, E = $, F = 5, I = *, T = 7

                STORE = 374#$

 

2. How many such pairs of letters are there in the word DISTINGUISH, each of which have as many letters between them in the word as they have between them in the English alphabet?

A) None               B) One                  C) Two                  D) Three              E) More than three

Ans: E

Solution:              ST, ING, GUI, US

 

3. How many meaningful English words can be made from the letters ADER, using each letter only once in each word?

A) None               B) One                  C) Two                  D) Three              E) Four

Ans: D

Solution: Given letters, ADER = DARE, DEAR and READ

 

4. How many meaningful English words can be made from the letters AIPR, using each letter only once in each word?

A) None               B) One                  C) Two                  D) Three              E) Four

Ans: B

Solution: Given letters, AIPR = PAIR

 

5. In a certain code SOUTHERN is written as UVPTMQDG. How is MARIGOLD written in that code?

A) JSBCNFKS      B) JSBNHPME    C) JSBNCKNF      D) NBSKCJNF     E) None of these

Ans: C

Solution:

SOUT -> TUOS -> (+1) -> UVPT

                HERN -> NREH -> (-1) -> MQDG

Similarly MARIGOLD = JSBNCKNF