Adv
AnilSinghBora
  • 0
Guru

In an AP(x) Given l = 28, S = 144 and there are total 9 terms. Find a. Q.3(10)

  • 0

what is the best solution for arithmetic progressions of class 10 .Give the best and easy solution for exercise 5.3 questions In an AP(x) Given l = 28, S = 144 and there are total 9 terms. Find a.

Share

1 Answer

  1. This answer was edited.

    Given that, l = 28,S = 144 and there are total of 9 terms.

    Sum of n terms formula,

    Sn = n/2 (a + l)

    144 = 9/2(a+28)

    (16)×(2) = a+28

    32 = a+28

    a = 4

    • 0
Leave an answer

Leave an answer

Browse

Choose from here the video type.

Put Video ID here: https://www.youtube.com/watch?v=sdUUx5FdySs Ex: "sdUUx5FdySs".

Captcha Click on image to update the captcha.

Related Questions