Question

Find the 20th term of the AP : 28, 24, 20,.......​

Answer 1

$\huge\underbrace\mathcal\pink{anSwer}$

Given AP : 28, 24, 20,.......

a = 28

d = 24-28 = -4

n = 20

t20 = a + (20-1)d

⠀⠀ = 28 + 19 × (-4)

⠀ ⠀= 28 - 76

⠀⠀= -48

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