Embibe Experts Solutions for Chapter: Coding And Decoding, Exercise 3: Mixed Coding

Q. Directions - In the question given below, a group of digits are given followed by four combinations of letters numbered (1), (2), (3). You have to find out which one of the four combinations correctly represents the group of digits below. If none of the four combinations represents the group of digits correctly, give (4) i.e, 'None of these' as the answer.

Digits-   9   2   1     7   5    3   6   4   8

Letters- B  V  M    L   D   P   A  F   R

Conditions for coding the group of digits

(I) If the first as well as the last digits are even, both are to be coded by the code for the first digit.

(II) If the first as well as the last digits are odd, both are to be coded by the code for the last digit.

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Q.  Direction - In the question given below, a group of digits are given followed by four combinations of letters numbered (1), (2), (3). You have to find out which one of the four combinations correctly represents the group of digits below. If none of the four combinations represents the group of digits correctly, give (4) i.e, 'None of these' as the answer.

Digits-   9   2   1     7   5    3   6   4   8

Letters- B  V  M    L   D   P   A  F   R

Conditions for coding the group of digits

(I) If the first as well as the last digits are even, both are to be coded by the code for the first digit.

(II) If the first as well as the last digits are odd, both are to be coded by the code for the last digit.

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In a certain code DEPUTATION is written as ONTADEPUTI. How is DERIVATION written in that code?

lf '$a$' represents '$÷$', '$b$' represents '$+$', '$c$' represents '$-$' and  '$d$' represents '$\times$' then $24 a 6 d 4 b 9 c 8=?$

In a certain code, $\mathrm{RED}$ is written as $27$. How will $\mathrm{BAD}$ be written?

If $△○=52, \square \#=43$ what is $\#△\square ?$

In a certain code, BOARD is written as 51324 and SIDE is written as 9647. How is BASE written in that code?

In a certain code language, “CAN” is written as “$20$” and “ARE” is written as “$26$”. How is “WIN” written in that code language?