# CPT Chapter AP and GP

*With Anand.Duration:4hrs45min*

AP & GP | Duration (min:sec) |

Basics of AP & GP | |

Overview of AP & GP | 07:41 |

What is AP & GP | 06:15 |

AP Series and Formula | 06:40 |

GP Series and Formula | 03:45 |

AP | |

Index | 03:05 |

AP Formula | 07:05 |

Finding n terms | 13:18 |

AM | 24:10 |

Sum of AP | 32:52 |

Sum of Natural Numbers | 16:15 |

AP Misc. Problem | 22:22 |

Working with consecutive numbers | 03:08 |

Summary | 02:25 |

GP | |

Index | 04:31 |

GP Formula | 01:34 |

Finding n terms | 07:46 |

GM | 13:01 |

Sum of GP | 14:29 |

3 numbers in GP | 09:05 |

m&n terms problem | 10:36 |

Infinity problem | 36:23 |

Summary | 01:55 |

AP & GP Combined | |

AP & GP Combined | 17:35 |

Practical Problem on AP& GP | 18:00 |

Conclusion | 01:24 |

Total | 04:45:20 |

Few below things we have covered

What is AP & GP?

AP

GP

AP & GP Combined

Practical problem AP & GP

Addition till Infinity

Formula

Finding term

Arithmetic Mean

Sum of AP

Sum of Natural Number

Misc Problem

Finding nth term -

The nth element of the sequence 1, 3, 5, 7,...is

(a) n

(b) 2n – 1

(c) 2n +1

(d) none of these

The last term of the series 5, 7, 9,..... to 21 terms is

(a) 44

(b) 43

(c) 45

(d) none of these

if 8th term of an A.P is 15, then sum of its 15 terms is

(a) 15

(b) 0

(c) 225

(d) 225/2

If the sum of n terms of an A.P be 2n2 + 5n, then its 'nth' term is

(a) 4n - 2

(b) 3n - 4

(c) 4n + 3

(d) 3n + 4

Inserting AM between 2 Numbers -

Insert 4 AM between -2 and 23

(a) 3, 13, 8, 18

(b) 18, 3, 8, 13

(c) 3, 8, 13, 18

(d) none of these

GP -

Formula

Finding term

Geometric Mean (GM)

Sum of GP

Three numbers

m and n term problem

Addition till infinity

## Notes

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