SPM Practice 1 (Arithmetic Progression) :Question 3

Question 3

Given an arithmetic progression p+9, 2p+10, 7p-1,…., where p is a constant. Find
(a) the value of p,
(b) the sum of the next five terms.

[ Remember : If a, b , c are three consecutive term of arithmetic progression, then c - b = b - a
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