If \( a = 10 \), \( b = 20 \), and \( c = 30 \) in an A.P, the arithmetic mean of \( a \) and \( b \) is?
University of Ilorin MTH101 2025B past question
- 21
- 15
- 18
- 9
Register free to see the answer and step-by-step explanation
More University of Ilorin MTH101 2025B past questions
Related questions
- Insert three geometric means between \( X \) and \( 5X + 4 \).
- Insert three geometric means between \( X + 7y \) and \( 5X + 3y \).
- Consider the quadratic equation \( 2x^2 - 7x + 5 = 0 \). Calculate \( \alpha^3 + \beta^3 \).
- If the sum of 3 terms in an AP is 21, what is the arithmetic mean?
- For every possible integer \( n \), \( 7^n - 3^n \) is divisible by which \( n \)?
- Find the sum to infinity of a G.P with a first term of 81 and fourth term 3.
