Question

a =216
D = -5
an =a +(n-1)d
216 = 1 + (n-1) -5
216 - 1 = -5n +5
215 = -5n +5
200 = -5n
n = 200/5
n =

Answer 1

Hi mate

Here is ur answer ⬇️⬇️

n=200/5 = 40 as u mentioned above...

216=1+(n-1)-5
215= -5n +5
210 = -5n
n= (-42)

I hope this will help you

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