# Coding and Decoding Questions

A) MFEDJJOE | B) EOJDEJFM |

C) MFEJDJOE | D) EOJDJEFM |

Explanation:

- There are 8 letters in the word.

- The coded word can be obtained by taking the immediately following letters of word, expect the first and the last letters of the given word but in the reverse order. That means, in the coded form the first and the last letters have been interchanged while the remaining letters are coded by taking their immediate next letters in the reverse order.

A) 9 | B) 2 |

C) 1 | D) 8 |

Explanation:

Justification:

In the first and second statements, the common code digit is '4' and the common word is 'good'.

So, '4' stands for 'good'.

In the second and third statements, the common code digit is '7' and the common word is 'pictures'.

So, '7' means 'pictures'.

Thus, in the second statements, '8' means 'see'.

A) EDRIRL | B) DCQHQK |

C) ESJFME | D) DEQJQM |

Explanation:

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.

A) 246173 | B) 214673 |

C) 214763 | D) 216473 |

Explanation:

The alphabets are coded as shown :

$ROS\hspace{0.17em}ECHAIP\phantom{\rule{0ex}{0ex}}682173459$

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

A) 39 | B) 41 |

C) 44 | D) 46 |

Explanation:

In the given code, A = 2, B = 4, C = 6,.... , Z = 52.

So, ACT = 2 + 6 + 40 = 48 and

BAT = 4 + 2 + 40 = 46

A) jo | B) na |

C) tod | D) lin |

Explanation:

**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'.

A) SHFDQ | B) HFDSQ |

C) RSAFD | D) QDFHS |

Explanation:

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

A) 216 | B) 124 |

C) 512 | D) 125 |

Explanation:

$ZCode\Rightarrow 26\Rightarrow \frac{26}{2}\Rightarrow 13\iff \left({13}^{3}\right)=2197$

$RCode\Rightarrow 18\Rightarrow \frac{18}{2}\Rightarrow 9\iff \left({9}^{3}\right)=729\phantom{\rule{0ex}{0ex}}$

Similarly, $JCode\Rightarrow 10\Rightarrow \frac{10}{2}\Rightarrow 5\iff \left({5}^{3}\right)=125$