Try this ACT math practice question on how to find the terms of an arithmetic progression.
In an arithmetic progression the difference between consecutive terms is a constant. For example, the sequence 3,7,11,15,… is an arithmetic progression where the consecutive terms are 4 apart. If the first term of an arithmetic progression is 4 and the last term is 54, and the sum is 609, then what is the third term?
- 8
- 8.5
- 9
- 9.5
- 10