Question

What is the 25th term in the sequence 11, 20, 29, 38, 47.?

Answer 1

227

Step-by-step explanation:

I multiplied 9 by 24 since all of the next 24 terms were adding 9 to 11 and got 216 and then I added 216 to 11 and got 227

Answer 2

227

Step-by-step explanation:

The formula for finding the nth term of an AP is given as;

`a_n=a+(n-1)d`

where a = first term = 11

n = term position = 25

d = common difference = 9

Let's go ahead and substitute the given values into our equation and find the 25th term;

`\begin{gathered} a_(25)=11+(25-1)9 \\ =11+(24)9 \\ =11+216 \\ \therefore a_(25)=227 \end{gathered}`