Here you have to find the value of p which makes three consecutive terms of an AP which is given.
This is the Important question based on Arithmetic progression Chapter of R.S Aggarwal book for ICSE & CBSE
Board.
This is the Question Number 4 Of Exercise 11 D of RS Aggarwal Solution.
Deepak BoraNewbie
For what value of p are (2p-1),7 and 3p three consecutive terms of an AP.
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Given :-
2p – 1 , 7 , 3p
are in A.P
As we know they the half of the sum of the a.p. is equal to the middle one
5p = 14 + 1
5p = 15
p = 3