Question Detail
Question
What are the two arithmetic means inserted between 5 and 20?
Correct Answer
Option A is the correct answer.
Detailed Explanation
There are 4 terms total, so T_4 = 5 + 3d = 20, giving d = 5. The means are 5 + 5 = 10 and 10 + 5 = 15.
Hint
No hint available