type 7 symbol coding & decoding Practice Questions Answers Test with Solutions & More Shortcuts

coding & decoding PRACTICE TEST [12 - EXERCISES]

type 1 opposite letter coding & decoding

type 2 left/right letter coding & decoding

type 3 letter rearrangement coding & decoding

type 4 alphabet replacement coding & decoding

type 5 word substitution coding & decoding

type 6 letter number coding & decoding

type 7 symbol coding & decoding

type 8 fictitious word, number, symbol coding & decoding

type 9 jumbled coding & decoding

type 10 conditional coding & decoding

type 11 matrix coding & decoding

type 12 comparison coding & decoding

Question : 11

If MOBILITY is coded as 46293927, then EXAMINATION is coded as

a) 45038401854

b) 56149512965

c) 57159413955

d) 67250623076

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Answer: (b)

Let A = 1, B = 2, C = 3, ……, X = 24, Y = 25, Z = 26.

Then, M = 13 = 1 + 3 = 4; O = 15 = 1 + 5 = 6; B = 2; I = 9;

L = 12 = 1 + 2 = 3; T = 20 = 2 + 0 = 2; Y = 25 = 2 + 5 = 7.

So, MOBILITY = 46293927.

Similarly, X = 24 = 2 + 4 = 6; N = 14 = 1 + 4 = 5.

So, EXAMINATION = 56149512965.

Question : 12 (Bank P.O. 2003)

If REQUEST is written as S2R52TU, then how will ACID be written?

a) 1394

b) IC94

c) BDJE

d) B3J4

e) None of these

Shortcut »

Answer: (e)

Clearly, vowels A, E, I, O, U are coded as 1, 2, 3, 4, 5 respectively.

Each of the consonants in the word is moved one step forward to give the corresponding letter of the code.

So, the code for ACID becomes ID3E.

Question : 13 (R.R.B. 2003)

If REASON is coded as 5 and BELIEVED as 7, then what is the code for GOVERNMENT?

a) 6

b) 8

c) 9

d) 10

Shortcut »

Answer: (c)

Clearly, each word is coded by the numeral which is 1 less than the number of letters in the word. Since there are 10 letters in the word GOVERNMENT,

so required code = 10 - 1 = 9.

Question : 14

If ZEBRA can be written as 2652181, how can COBRA be written?

a) 302181

b) 3152181

c) 31822151

d) 1182153

Shortcut »

Answer: (b)

Putting  A = 1, B = 2, C = 3, ……, X = 24, Y = 25, Z = 26,

we have: ZEBRA > Z/E/B/R/A > 26/5/2/18/1 > 2652181.

COBRA > C/O/B/R/A > 3/15/2/18/1 > 3152181.

Question : 15

Which of the following numbers can the code YM$ME# represent? (A) 138450 (B) 338457 (C) 538459

a) Only (A) and (C)

b) Only (B)

c) Only (C)

d) Only (B) and (C)

e) None of these

Shortcut »

Answer: (d)

H, $, M, and E are codes for 3, 8, 4, and 5 respectively.

Y at the first place and # at the last place indicate that the number should begin and end with an odd digit.

Clearly, only (B) and (C) satisfy this condition.

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