Math Problem Statement
Resuelve el problema: En una prueba de matemáticas las preguntas estaban ordenadas según dificultad. La primera valía cuatro puntos y cada una de las restantes valía dos puntos más que la anterior. Si en total cuentan 54 puntos. ¿Cuántas preguntas tenía el examen?. Explica el procedimiento.
Solution
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Math Problem Analysis
Mathematical Concepts
Arithmetic Progressions
Algebra
Quadratic Equations
Formulas
Sum of an arithmetic progression: S_n = (n/2) * (a_1 + a_n)
nth term of an arithmetic progression: a_n = a_1 + (n-1) * d
Quadratic equation formula: ax^2 + bx + c = 0
Theorems
Quadratic Formula
Suitable Grade Level
Grades 9-11
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