Question

In an Arithmetic Progression, if a=28, d=-4, n=7, then an is:

(a)4
(b)5
(c)3
(d)7

Answer 1

4

Correct Option is A

Explaination

For an a AP,

AP,an = a + (n-1)d

(n-1)d= 28 + (7-1) (-4)

(-4)= 28 + 6(-4)

6(-4)= 28 - 24

An = 4

$\: \: \: \:$

Hence , Option A is correct