Home
Class 9
MATHS
In an A.P. if the ratio of the s...

In an A.P. if the ratio of the sum upto 10th term and the 10th term is 140 : 23, and the common difference is 2, then determine the first term.

Promotional Banner

Topper's Solved these Questions

  • PROGRESSION

    KALYANI PUBLICATION|Exercise EXERCISE|249 Videos

  • MATHEMATICAL LOGIC

    KALYANI PUBLICATION|Exercise EXERCISE|290 Videos

  • SYSTEM OF NUMERATION

    KALYANI PUBLICATION|Exercise EXERCISE|101 Videos

Similar Questions

Explore conceptually related problems

The first term of an AP.is 6 and the common difference is 2,then determine the 15th term.

The first term of an A.P. is 6 and common difference is 2, then determine the l5th team.

The 17th term of an AP exceeds its 10th term by 7.Find the common difference.

Fill the gap The sum of n terms of an A.P. whose first term is a and common difference is d is

The first term of an A.P. is 5 and the 11th term ,is 125 then determine the common difference.

In an A.P. the ratio of 7th term to 11th term is 19 : 31 and the sum of these two terms is 20.Find the sum of first twenty terms.

Find the 31st term of an AP whose 11th term is 38 and the 16th term is 73.

If the sum of n terms of an A.P is S_n=3n^2+5n then find the Common difference:

In an A.P., 10th term is 23 and 32nd term is 67. Find the first term and the common difference.

If 18th term of an A.P. is 52, determine the sum upto 35th term.

KALYANI PUBLICATION-PROGRESSION-EXERCISE
  1. If the sum upto 21st term of an A.P. is 630, determine the 11th ...

    Text Solution

    |

  2. If 18th term of an A.P. is 52, determine the sum upto 35th term.

    Text Solution

    |

  3. In an A.P. if the ratio of the sum upto 10th term and the 10th...

    Text Solution

    |

  4. The seventh term of an A.P. is 20 and the sum of first twenty terms ...

    Text Solution

    |

  5. The sum of first ten terms of an A.P. is 120. The sum of next ten term...

    Text Solution

    |

  6. In an A.P. the ratio of 7th term to 11th term is 19 : 31 and the sum ...

    Text Solution

    |

  7. The sum of first nine terms of an A.P. is 171 and that of 24 terms is ...

    Text Solution

    |

  8. In an A.P. the nth term is p and the sum of first n terms is q. Show t...

    Text Solution

    |

  9. If {S1,S2,S3} denoted the sum of n terms of three series in A.P. the f...

    Text Solution

    |

  10. The sum of first n terms of an A.P. is m and that of first m terms is...

    Text Solution

    |

  11. The ratio of sum of the first n terms of two series in A.P is (3n + 8)...

    Text Solution

    |

  12. In an A.P. the pth and qth terms are respectively a and b. Show that t...

    Text Solution

    |

  13. If the first terms, second term and the last term of an A.P. are respe...

    Text Solution

    |

  14. The sum of first n terms of an A.P. is Sn.If Sn=n^2p and Sm=m^2p(mn...

    Text Solution

    |

  15. The first term of an A.P. is a. If sum of first p terms is zero, pro...

    Text Solution

    |

  16. The sum of first P terms of an A.P. is equal to that of the first Q te...

    Text Solution

    |

  17. Find the sum of all odd numbers lying between 12 and 90.

    Text Solution

    |

  18. Determine the sum of the numbers lying between 100 and 500 which are d...

    Text Solution

    |

  19. Find the sum of all numbers lying between 1 and 100 which are divisibl...

    Text Solution

    |

  20. Determine the sum of the numbers lying between 100 and 200 which are n...

    Text Solution

    |