A) MEDGTSD | B) RDNLSXH |

C) QEOKTXG | D) QEOKTWG |

Explanation:

The Given word is OBLIQUE. After making necessary changes that is all vowels are substituted by the next second letter and all consonants are substituted by the next third letter in the English alphabet, we get the following form of the given word: QEOKTWG.

A) A | B) B |

C) C | D) D |

Explanation:

6-3 = 3 9-4 = 5 (3x5=15) 15=O

7-2 = 5 7-3 = 4 (5x4=20) 20=T

9-6 = 3 5-1 = 4 (3x4=12) 12=L

Similarly, 4-1 = 3 8-5 = 1 (3x1=3) 3=C

A) E | B) Z |

C) X | D) F |

Explanation:

first letter A with last letter Z

similarly 2nd last letter Y with 2nd letter B

Now 3rd letter C with 3rd last letter X

4th last letter W with 4th letter D

and so on....

Therefore the missing letter is X

A) UJI | B) VIJ |

C) XLM | D) DOP |

Explanation:

First letter series S,T,U,V

second and third letter series CD,EF,GH,IJ...

so answer = VIJ

A) VPCFT | B) DHLRX |

C) CFKNT | D) None |

Explanation:

The logic behind the sequence given in the question is +4, +4, +6, +6

Therefore, the sequence which follows the same logic in the given options is DHLRX.

A) S | B) I |

C) J | D) T |

Explanation:

Here the series has mixed two series.

n m l k...! reverse alphabet

o p q r ...! forward alphabet

So the letter before k is j and after that letter after r is s and so on...