Question 1

If Z = 52 and ACT = 48, then BAT will be equal to

Accepted Answer

In the given code, A = 2, B = 4, C = 6,.... , Z = 52. So, ACT = 2 + 6 + 40 = 48 and BAT = 4 + 2 + 40 = 46

Question 2

In a certain code language, (A) ‘pit na som’ means ‘bring me water’ (B) ‘na jo tod’ means ‘water is life’ (C) ‘tub od pit’ means 'give me toy’ (D) ‘jo lin kot’ means ‘life and death’ Which of the following represents 'is' in that language ?

Accepted Answer

Justification: In statements A and B, the common code word is 'na' and the common word is 'water'. So, 'na' means 'water'. In statements B and D, the common code word is 'jo' and the common word is 'life'. So, 'jo' means 'life'. Thus, in statements B, 'tod' represents 'is'.

Question 3

In a certain code, MONKEY is written as XDJMNL. How is TIGER written in that code ?

Accepted Answer

The letter of the word are written in a reverse order and then each letter is moved one step backward to obtain the code.

Question 4

If FRIEND is coded as HUMJTK, how is CANDLE written in that code ?

Accepted Answer

The first, second, third, fourth, fifth and sixth letters of th word are respectively moved two, three, four, five, six and seven steps forward to obtain the corresponding letters of the code.

Question 5

If Z= 2197 and R= 729. How would J be written in that code?

Accepted Answer

Z C o d e ⇒ 26 ⇒ 26 2 ⇒ 13 ⇔ 13 3 = 2197 R C o d e ⇒ 18 ⇒ 18 2 ⇒ 9 ⇔ 9 3 = 729 Similarly, J C o d e ⇒ 10 ⇒ 10 2 ⇒ 5 ⇔ 5 3 = 125

Question 6

If ROSE is coded as 6821, CHAIR is coded as 73456 and PREACH is coded as 961473, what will be the code for SEARCH ?

Accepted Answer

The alphabets are coded as shown : R O S   E C H A I P 6 8 2 1 7 3 4 5 9 So, in SEARCH, S ia coded as 2, E as 1, A as 4, R as 6, C as 7, H as 3. Thus, the code for SEARCH is 214673

Question 7

(A) '134' means 'you are well'; (B) '758' means 'they go home'; (C) '839' means 'we are home'; Which of the statements can be dispensed with while answering the above question?

Accepted Answer

Justification: We can find the code for 'home' from the second and third statements. For finding the code for 'they', we need the code for 'go' which cannot be determined from the given data. Clearly, statement A is not necessary.

Question 8

Acording to a military code, SYSTEM is SYSMET and NEARER is AENRER. What is the code for FRACTION ?

Accepted Answer

The letter is the first half and the letter half of the word are separately reversed to obtain the code.

Question 9

If green means red, red means yellow, yellow means blue, blue means orange and orange means green, what is the colour of clean sky ?

Accepted Answer

The colour of clean sky is 'blue' and as givne, 'yellow' means 'blue'. so, the colour of clear sky is 'yellow'.

Question 10

If air is called green , green is called blue, blue is called sky, sky is called yellow, yellow is called water and water is called pink, then what is the color of clear sky ?

Accepted Answer

The colour of clear sky is 'blue' and as given, 'blue' is called 'sky'. So, the colour of clear sky is 'sky'.

Question 11

If MADRAS can be written as NBESBT, how can BOMBAY be written in that code ?

Accepted Answer

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

Question 12

In a certain code language, '3a, 2b, 7c' means 'Truth is Eternal'; '7c, 9a, 8b, 3a' means 'Enmity is not Eternal' and '9a, 4d, 2b, 8b' means 'Truth does not perish'. Which of the following means 'enmity' in that language ?

Accepted Answer

Justification: In the second and third statements, the common code is '9a' and the common word is 'not'. So, '9a' means 'not'. In the first and second statements, the common codes are '7c' and '3a' and the common words are 'is' and 'Eternal'. So, in the second statement, '8b' means 'enmity'.

Question 13

If in a code language, COULD is written as BNTKC and MARGIN is written as LZQFHM, how will MOULDING be written in that code ?

Accepted Answer

Each letter in the word is moved one step backward to obtain the corresponding letter of the code

Question 14

In a certain code language STUDENT is written as TUTDNES.How will SOURCES be writte in that code language?

Accepted Answer

- There are 7 letters in the word - The middle letter has been left intact - The first and the last letters of the word have interchanged their position. Similarly, the second and the third letters and the fifth and sixth letters have interchanged their position.

Question 15

In a certain code language , 'PROBLEM' is written as MPERLOB. How will 'PROBLEM' is written as MPERLOB. How will 'NUMBERS' be written in that code?

Accepted Answer

1 2 3 4 5 6 P R O B L E 7 M ⇒ 7 1 6 2 5 3 M P E R L O 4 B Similarly, 1 2 3 4 5 6 N U M B E R 7 S ⇒ 7 1 6 2 5 3 S N R U E M 4 B

Question 16

If in a certain language if ENTRY is coded as 12345 and STEADY is coded as 931785, then state which is the correct code for below word. NEATNESS

Accepted Answer

The alphabets are soded as shown : E   N   T   R   Y   S   A   D 1 2 3 4 5 9 7 8 N is coded as 2, E as 1, A as 7, T as 3 and S as 9. So, NEATNESS is coded as 21732199.

Question 17

In a certain code language, (A) ‘pit dar na’ means ‘you are good’ (B) ‘dar tok pa’ means ‘good and bad’ (C) ‘tim na tok’ means 'they are bad’ In that language, which word stands for 'they' ?

Accepted Answer

Justification: In the first and third statements, the common word is 'na' and the common word is 'are'. So, 'na' means 'are'. In the second and third statements, the common code word is 'tok' and the common word is 'bad'. So, 'tok' means 'bad'. Thus, in the third statements, 'tim' stands for 'they'.

Question 18

In a certain code, '247' means 'spread red carpet' ; '256' means 'dust one carpet' and '234' means 'one red carpet'. Which digit in that code means 'dust' ?

Accepted Answer

In the first and second statements, the common code digit is '2' and the common word is 'carpet'. So, '2' means 'carpet'. In the second and third statements, the common code digit is '6' and the common word is 'one'. So, '6' means 'one'. Therefore, in the second statement, '5' means 'dust'.

Question 19

If E = 5 and READ is coded as 7, then what is the code of 'DEAR' ?

Accepted Answer

Here E = 5 = 5/1 = 5 => READ = 18 + 5 + 1 + 4 = 28/4 = 7 => DEAR = 4 + 5 + 1 + 18 = 28/4 = 7

Question 20

If MILITARY can be written as 1, 2, 3, 2, 4, 5, 6, 7 then how can TIMLI be written in that code ?

Accepted Answer

4, 2, 1, 3, 2

Coding Decoding Questions