Multiple choice In an AP, if d = -4, n=7, an = 4, then a is 6 7 20 28 Reveal answer Fill a bubble to check yourself D Correct answer Explanation 1:(d) 28[Soln: an = a + (n - 1)× d⇒ 4 = a + (7 - 1) × -4⇒ 4 = a - 24⇒ a = 4 + 24 = 28]