A) 16,8 | B) 49,7 |

C) 36,4 | D) 25,5 |

Explanation:

The numbers in the first row form a series 1^{2}, 2^{2}, 3^{2}.

So, missing number in the first row = 4^{2} = 16.

The number in the second row from the series, 1, 2, 3, 4.

The number in the third row from the series 2, 4, 6.

So, missing number in the third row = 6 + 2 = 8.

A) 14,21 | B) 21,14 |

C) 56,84 | D) 84,56 |

Explanation:

Putting A=1, B=2, C=3,..., M=13,....,X=24,Y=25, Z=26, we have :

So, the missing numbers are :

Hence, the answer is (b).

A) U | B) V |

C) W | D) X |

Explanation:

The letters in the first row follow the sequence +5, +7.

The letters in the second row follow the sequence +6, +8.

In the third row, the first letter G moves 7 steps forward to give the second letter N.

Clearly, the missing letter will be 9 steps ahead of N i.e. W.

A) K | B) N |

C) O | D) P |

Explanation:

The letters in the second and third rows are five steps ahead of those in the first and second trespectively.

So, the missing letter will be five steps ahead of F, which is K.

A) 16 | B) 15 |

C) 13 | D) 9 |

Explanation:

In the first column, 17 - 11 = 25 - 19 = 6.

In the second column, 12 - 6 = 34 - 28 = 6.

Let the missing number in the third column be y.

Then, y - 8 = 19 - 11 = 8 or y = 16.

A) 26 | B) 20 |

C) 16 | D) 12 |

Explanation:

In the first column, 2 x 1 + 1 = 3.

In the second column, 14 x 7 + 7 = 105.

Let the missing number in the third column be y.

Then, y x 9 + 9 = 117 or 9y = 108 or y = 12.