Home
Class 11
MATHS
Which term of the sequence 4,9,14,19…. i...

Which term of the sequence 4,9,14,19…. is 124?

Text Solution

Verified by Experts


Here, `a=4,d=5`
`a_ n` `=124`
`a+(n−1)d=124`
`4+(n−1)(5)=124` ,br>`n=25`
Hence, the `25th` term of the sequence is `124.`
Promotional Banner

Topper's Solved these Questions

  • BINOMIAL THEOREM

    RD SHARMA|Exercise Solved Examples And Exercises|228 Videos

Similar Questions

Explore conceptually related problems

Which term of the sequence 4,9,14,19,... is 104

Which term of the sequence 4 , 9 , 14 , 19 , ... is 109

The n t h term of the sequence 4 , 7 , 12 , 19 , … is

Which term of the sequence 20,19(1)/(4),18(1)/(2),17(3)/(4),... is the first negative term?

Which term of the sequence 20,19(1)/(4),18(1)/(2),17(3)/(4), is the first negative term?

Which term of the A.P. 4, 9, 14, 19 ...... is 109 ?

Which term of the sequence: 16-6i, 15-4i,14-2i ………. Is pure imaginary?

RD SHARMA-ARITHMETIC PROGRESSIONS-Solved Examples And Exercises
  1. The nth term of a sequence is given by an=2n^2+n+1. Show that it is no...

    Text Solution

    |

  2. Show that the sequence 9,12,15,18,... is an A.P. Find its 16th term...

    Text Solution

    |

  3. Which term of the sequence 4,9,14,19…. is 124?

    Text Solution

    |

  4. How many terms are there in the sequence 3,6,9, 12 , 111 ?

    Text Solution

    |

  5. Is 184 a term of the sequence 3,7,11, ... ?

    Text Solution

    |

  6. If pth,qth and rth terms of an A.P. are a, b, c respectively, then sho...

    Text Solution

    |

  7. If pth, qth, and rth terms of an A.P. are a ,b ,c , respectively, the...

    Text Solution

    |

  8. Show that the sum of (m+n)^(t h)a n d\ (m-n)^(t h) term of an A.P. is ...

    Text Solution

    |

  9. If m times the m^(t h) term of an A.P. is equal to n times its n^(t h)...

    Text Solution

    |

  10. If the p^(t h) term of an A.P. is q and the q^(t h) term is p , prove ...

    Text Solution

    |

  11. If the mth term of an A.P. be 1//n and nth term be 1//m then show that...

    Text Solution

    |

  12. Determine the number of terms in the terms in the A.P. 3,7,11…407. ...

    Text Solution

    |

  13. How many numbers of two digits are divisible by 7?

    Text Solution

    |

  14. Show that there is no A.P. which consists of only distinct prime nu...

    Text Solution

    |

  15. In the arithmetic progressions 2,5,8,… upto 50 terms and 3,5,7,9… upto...

    Text Solution

    |

  16. Find: 10 t h term of the A.P. 1,4,7,10..

    Text Solution

    |

  17. Find: nth term of the A.P. 13,8,3,-2,…

    Text Solution

    |

  18. Find: 18th term of the A.P. sqrt(2),\ 3sqrt(2),\ 5sqrt(2) ddot

    Text Solution

    |

  19. Evaluate (sqrt(3)+sqrt(2))^6-(sqrt(3)-sqrt(2))^6dot

    Text Solution

    |

  20. If the sequence an is A.P., show that a(m+n)+a(m-n)=2amdot\

    Text Solution

    |