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the third term of an A.P. is 18 and seve...

the third term of an `A.P.` is `18` and seventh term if `30` then find sum of `17` terms

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If in A.P., 3rd term is 18 and 7 term is 30, then find sum of its first 17 terms

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Knowledge Check

  • The third term of an AP is 1/5 and the 5th term is 1/3 find the sum of 15 terms of the AP:

    A
    `(1/15)`
    B
    `(3/5)`
    C
    8
    D
    15

  • If in A.P., 3rd term is 18 and 7th term is 30, the sum of its 17 terms is

    A
    600
    B
    612
    C
    624
    D
    none of these

  • If the nth term of an A.P. is 4n-1 , find the 30th term and the sum of first 30 terms.

    A
    119 and 1830
    B
    69 and 1665
    C
    119 and 1380
    D
    none of these

    • Similar Questions

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    If the seventh term of an A.P. is 1/9 and its ninth term is 1/7 ,find its 63^(rd) term .

    The third term of an A.P.is 7 and the seventh term exceeds three xx the third term by 2. Find the first term,the common difference and the sum of first 20 terms.

    If the sum of first 6 terms of A.P.is 96 and sum of first 10 terms is 240 ,then find the sum of n terms of A.P.

    If the 2^(nd) term of an A.P. is 8 and the 5 ^(th) term is 17, find its 19^(th) term.

    If the sum of first 10 terms of an A.P. is 140 and sum of first term is 320, the first term of the A.P. will be-

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