__Coding and Decoding Practice Questions – Set 14__**Directions (1 – 5): Read the following information carefully and answer the questions given beside:**

In a certain code
language

**‘729 961 246 361’**is written as

**‘422 853 275 253’**

**‘289 784 576’**is written as

**‘112 341 716’**

**‘625 841 324’**is written as

**‘734 134 121’**

**1. ‘532’ is the code for which of the following?**

a) 51

b) 942

c) 641

d) 486

e) Can’t be determined

**2. What is the code for the number ‘786’?**

a) 81

b) 169

c) 121

d) 144

e) None of these

**3. What is the code for the number ‘942’?**

a) 532

b) 224

c) 314

d) 725

e) None of these

**4. What is the code for the number ‘246’?**

a) 422

b) 253

c) 853

d) 275

e) None of these

**5. What is the code for the number ‘521 134 289 ’?**

a) 314 312 761

b) 413 312 716

c) 123 314 167

d) 413 321 761

e) None of these

**Directions (6 – 10):**

**In each question below is given a group of numbers / symbols followed by five combinations of letter codes numbered (1), (2), (3), (4) and (5). You have to find out which of the combinations correctly represents the group of numbers / symbols based on the following coding system and the conditions and mark the number of that combination as your answer:**

**Conditions:**

**1)**If the second element is an even number and the last element is a symbol then that even number is to be coded as the code for the symbol.

**2)**If both the second and third elements are symbols, the codes for these symbols are to be interchanged.

**3)**If there are no even numbers then the codes of the first and the third elements have to be interchanged.

**6. 5 & @ 2 ¥ 6 * 1 β ©**

a) QJAYBCZSHE

b) QAJCBYSZHE

c) QJAYCSBZHE

d) QAJCSYBZHE

e) QJACBYSZHE

**7. ¥ 8 $ 57 ! 4 * µ #**

a) BKUQDMFSWR

b) RKUQDMFSWB

c) BRUQDMFSWR

d) BRUDQMFSWR

e) BKUQDMFSWB

**8. 1 @ 7 ! $ ®3 * α &**

a) DADMUGNSVJ

b) ZJDMUGNSVA

c) MAZDUGNSVJ

d) DJZMUGNSVA

e) MJZNUGDSVA

**9. 2 ¥ # 7 @ 59 ! * ∩**

a) CRBJDQOMSP

b) CRBDJQOMSP

c) RNCDJQMOSP

d) CBRDJQOMSP

e) CBRQJDOMSP

**10. ! 62 $ 3 # & 8 * ¥**

a) MBCUNRAKSB

b) MNCUYKARSB

c) MYCUNRAKSB

d) MNCUYRAKSB

e) MBCUNKARSB

**Directions (11 – 15): Study the information below and answer the following question:**

**In a certain code language,**

**‘Arrive today eagles later’**is written as

**21*R, 6$A, 14$O, 25*A**

**‘Begin work faster table’**is written as

**14$A, 17%O, 26*A, 22$E**

**‘Length error arrow burn’**is written as

**6*E, 25$R, 22%U, 21$R**

**‘Trial better than wisdom’**is written as

**14$R, 14%H, 22*E, 17*I**

**11. The code for the word ‘table’**

a) 26*A

b) 17%O

c) 14$A

d) 22$ E

e) None of these

**12. The code word 6$A for the word**

a) Later

b) Arrive

c) Earlier

d) Today

e) Either 1 or 3

**13. Find the code word for the word ‘Burn’?**

a) 25$R

b) 22%U

c) 21$R

d) 6*E

e) Can’t be determined

**14. According to the given code, what is the code for ‘M’?**

a) 12

b) 8

c) 10

d) 7

e) Can’t be determined

**15. By using the given code word, find the code word for ‘Better Luck Next Arrive’ ?**

a) 22$E, 21$R, 6*U, 8%E

b) 8*E, 21*R, 22%E, 6%U

c) 22*E, 6%U, 8%E, 21*R

d) 21%R, 22$E, 6*U, 8%E

e) 6$U, 22*E, 8*E, 21%R

**Solution:**

**(1 – 5): Explanation:**

**In this question the first digit of every given number is coded as the difference of first digit and the second digit of the given number.**

For instance, in 729 the
first and the second digit are 7 and 2 respectively and the difference between
them is 7 -2 = 5.

**Next, the second digit of the given number is coded as the difference of the second digit and the third digit of the given number.**

In 729 the second digit
and the third digit are 2 and 9 respectively and the difference between them is
9 - 2 = 7.

**Similarly, the third digit of the given number is coded as the difference of the third digit and the first digit of the given number.**

In 729 the third digit
and the first digit are 9 and 7 respectively and the difference between them is
9 - 7 = 2

Clearly, the code for 729
will be 572.

**In the final step the obtained codified digits are arranged in a reverse order.**

In case of 729, the
obtained digits are 5, 7 and 2 respectively. Therefore, the final code for 729
will be 275.

**1. C) 2. C) 3. D) 4. A) 5. B)**

**6. E)**Here, 2

^{nd}rule implies i.e., both the second and third elements are symbols.

Therefore, 5 & @ 2 ¥
6 * 1 β © is coded as QJACBYSZHE.

**7. C)**Here, 1

^{st}rule implies i.e., second element is an even number and the last element is a symbol.

Therefore, ¥ 8 $ 57 ! 4 *
µ # is coded as BRUQDMFSWR.

**8. D)**Here 3

^{rd}rule implies i.e., there are no even numbers.

Therefore, 1 @ 7 ! $ ®3 *
α & is coded as DJZMUGNSVA.

**9. B)**Here, 2

^{nd}rule implies i.e., second and third elements are symbols.

Therefore, 2 ¥ # 7 @ 59 !
* ∩ is coded as CRBDJQOMSP.

**10. A)**Here, 1

^{st}rule implies i.e., second element is an even number and the last element is a symbol.

Therefore, ! 62 $ 3 #
& 8 * ¥ is coded as MBCUNRAKSB.

**(11 – 15):**

The logic for all the
above code is:

Number that denotes 1

^{st}letter of the word: A-21, B-22, C-23, …, G-1,……, Z -20
Then the symbol is
denoted with respect to no. of letters,

$ => 5 letter
word; % => 4 letter word; * => 6 letter word

Next, second letter of
the word will come.

**11. C) 12. A) 13. B) 14. D) 15. C)**