Q38
In an A.P., if d = -4, n = 7, an = 4, then a is
A.
6
B.
7
C.
20
D.
28
AnswerAnswer: Option D
Solution
Answer: Option D
Solution:
an = a + (n - 1) × d⇒ 4 = a + (7 - 1) × -4
⇒ 4 = a - 24
⇒ a = 4 + 24
= 28