Coding and Decoding Practice Questions

In a certain code ‘RATIONAL’ is written as ‘TARNOILA’. How would ‘BRUTAL’ be written in that code?

1. UBRTAL

2. URBLAT

3. UBRATL

4. URBTAL

5. None of these

Sol: Option 2
Explanation: Letters are reversed in groups of 3 which can be shown as:
RAT = TAR, ION = NOI. etc. So for BRUTAL
BRU = UBR
TAL = LAT
so code for BRUTAL = UBRLAT

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In a certain code ‘PURPOSE’ is written as ‘UPPRSOE’. How would ‘WATER’ be written in that code?

1. WATRE

2. AWTRE

3. AWETR

4. WEATR

5. TRWAE

Sol: Option 3
Explanation: Interchange the letter in the pair of two and keep the last letter as it is.
WA = AW
TE = ET
So code of WATER is AWETR.
In a certain code ‘FORGIVE’ is written as ‘DPPHGWC’. How would ‘REQUEST’ be written in that code?

1. PFOVCUR

2. TFOVCRU

3. POFCVUR

4. TOFCVUR

5. None of these

Sol: Option 5
Explanation: The letters move –2, +1, alternately R-2=P, E+1=F, Q-2=O, U+1=V and so on. So code of REQUEST is PFOVCTR

DIRECTIONS for questions 4 -8 : The word ‘CALM’ is written according to some code, using the same code the word ‘YEAR’ may be written as one of the five alternatives given for the question. Find the correct alternative.

If CALM is written as HEOO , YEAR may be written as

1. DHDS

2. DTDH

3. DDHT

4. DIDT

5. DHSR

Sol: Option 4
Explanation: Each letter moves +5, +4, +3, +2.
Therefore, ‘DIDT’ is a code for ‘YEAR’.
If CALM is written as XZON, YEAR may be written as

1. BVZI

2. BZVI

3. BVIZ

4. BVZJ

5. BVNI

Sol: Option 1
Explanation: The concept of Reverse EJOTY is followed.
Or we can also say that sum of letter & its respective coded letter is 27.
Y+B=25+2=27, E+V=5+22=27, and so on.
Hence code for YEAR is ‘BVZI’.

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Coding decoding practice questions: Level 02

If CALM is written as LKZB, YEAR may be written as

1. BQDX

2. QZNX

3. QZDX

4. QDBX

5. QBXD

Sol: Option 3
Explanation:Letters are reversed and then move –1.
Reverse of YEAR is RAEY and subtract 1 from each letter.
Hence Code for YEAR is ‘QZDX’.
If CALM is written as AYJK, YEAR may be written as

1. WCYP

2. WCXP

3. CWXP

4. PWXY

5. WCYN

Sol: Option 1
Explanation: Each letter moves –2.
Y-2=W, E-2=C and so on. therefore, code for YEAR is ‘WCYP’.
If CALM written as ZDIP, YEAR may be written as

1. ZXHV

2. HVXZ

3. VHXU

4. VHWZ

5. VHWY

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Sol: Option 3
Explanation:The letters move –3, +3, alternately
Y-3=V, E+3=H and so on.
Hence code for YEAR is ‘VHXU’.
In a certain code ‘EASIER’ is written as TGKUCG. How is CUTTER written in that code?

1. TWVVGE

2. TGWWVE

3. TGVVWE

4. TVGVWE

5. TVVGWE

Sol: Option 3
Explanation: Letters are written in reverse and move +2. Reverse of CUTTER is RETTUC. Now add 2 to each letter
R+2=T, E+2=G, T+2=V and so on. So code of CUTTER is TGVVWE.
If ‘MEANDER’ is coded as ‘4515459’, then ‘MATHEMATICS’ is coded as

1. 6 7 2 5 0 6 2 3 0 7 6

2. 4 1 2 8 5 4 1 2 9 3 1

3. 4 5 0 3 8 4 0 1 8 5 4

4. 5 7 1 5 9 4 1 3 9 5 5

5. None of these

Sol: Option 2
Explanation: Letters are arranged according to the digital sum roots which is explained by Example:
A = 1, B = 2, ..... ,H=8, I = 9, J = 10=1+0=1,M= 13= 1+3=4 & so on.
Similarly, code for MATHEMATICS is 4 1 2 8 5 4 1 2 9 3 1.