Question

Find the 66th term of the arithmetic sequence 25, 10, -5, ..

Answer 1

-950

Explanation:

Arithmetic sequence=a+(n-1)d

a=first number

n=nth term

d=difference

a=25

n=66

d=-15

So let's solve

25+(66-1)(-15)

25+(65)(-15)

25-975

-950

So the 66th terms is -950