maths

the 1st term of an ap is twice the common difference find in terms of the 5th term of the ap

  1. 👍 0
  2. 👎 0
  3. 👁 372
  1. a = 2d

    term1 = 2d
    term2 = a+d = 2d+d = 3d
    term3 = a + 2d = 2d + 2d = 4d
    term4 = 5d
    term5 = 6d
    etc

    so you can let d be any value, say d= 5
    then the 5 terms are
    10 15 20 25 30

    if d = 17
    terms are 34 51 68 85 102

    1. 👍 0
    2. 👎 0
  2. THANKS,IT WAS REALLY HELPFUL

    1. 👍 0
    2. 👎 0

Respond to this Question

First Name

Your Response

Similar Questions

  1. arithmetic

    the sum of the n termsof an ap whose first term is 5 and common difference is 36 is equal to the sum of 2n terms of another AP whose first term is 36 ans common difference is 5. Find n?

  2. math

    Given that the sum of the first 20 terms of an arithmetic sequence is 1150 and the fifth term is twice the second term . find: 1.The first term and the common difference 2. find the general formula

  3. Math

    In an arithmetic progression, the 5th term is six times the 1st term and the sum of the first six terms is 99. Find the 1st term and the common difference. Attempt at solution: U5 = 6(U1) 99 = 3(2[U1] + 2d)

  4. mathematics

    1.1 the third term of an arithmetic sequence is 8 and the 15 term is 44 . Calculate: 1.1 the common difference and first term. 1.2 the sum of the first 50 terms. 1.2 1;4;7;10.... Is an arithmetic sequence .find: 1.2.1 the 30 term.

  1. math

    The sum of the 1st nine terms of an arithmetic series is 216. The 1st,3rd and the 7th terms of series form the 1st three terms of a geometric series. Find the 1st term and the constant difference of the arithmetic series ?

  2. algebra

    The fifth term of an A.P exceeds twice the second term by 1.The tenth term exceeds twice the fourth term by 3. Find:1.the first term. 2.the common difference. 3.the sum of first twenty five terms.

  3. AP calculus

    The sixth term of an Arithmetic Progression is 23 and the sum of the six terms is 78. Find the first term and the common difference.

  4. maths

    The first and the last term of an AP are 6.7 and 17.1 respectively. If there are 14 terms in the sequence find the common difference

  1. Mathematics

    If the sixth term of an arithmetic progression (A.P) is 37 and the sum of the six term is 147, find the first term, common difference, sum of the first fifteen terms

  2. arithmetic

    THE SUM OF THE 2ND AND 5TH TERMS OF AN A.P IS 42. IF THE DIFFERENCE BETWEEN THE 6TH AND 3RD TERM IS 12, FIND THE: COMMON DIFFERENCE, 1ST TERM, 20TH TERM.

  3. Maths

    The 2nd, 5th, and 14th term Of an AP are consecutive terms of a GP. Given that the sum of the three terms of the AP is 9, find the A, first term and the common difference of the AP. B common ratio of the GP C sum of the first

  4. Arithmetic Progressions

    The second term of an arithmetic progression I four times the fits term, and the first term is ten. Find the common difference and hence find the sum of the first 12 terms.

You can view more similar questions or ask a new question.