Math Problem Statement

Una acción en la bolsa de valores vale 1400 pesos en mayo. De mayo a junio la acción aumenta un 10 %. De junio a julio la acción disminuye un 10 %. ¿Cuántos pesos vale a fin de julio? (a) 1450 (b) 1400 (c) 1390 (d) 1386 (e) 1376

Solution

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Math Problem Analysis

Mathematical Concepts

Percentage Increase
Percentage Decrease
Sequential Percentages

Formulas

New Value = Original Value × (1 + Percentage Increase)
New Value = Original Value × (1 - Percentage Decrease)

Theorems

Sequential percentage application does not return to the original value when increasing and then decreasing by the same percentage

Suitable Grade Level

Grades 7-9