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Deepak Bora
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Find the 6th term from the end of the AP 17, 14, 11, …, (-40).

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An Important question based on Arithmetic progression Chapter of R.S Aggarwal book for ICSE & CBSE Board.
Here the AP is given. You have to find the nth term from the end of the AP
This is the Question Number 24 Exercise 11 A of RS Aggarwal Solution.

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  1. Given AP is 17, 14, 11, …,(-40)
    a = 17, d = 14 – 17 = -3, l = -40
    6th term from the end
    = l – (n – 1)d
    = -40 – (6 – 1) (-3)
    = -40 – (5 x (-3))
    = -40 + 15
    = -25

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