Math Problem Statement

Hvor mange år tar det før et innskudd på 1000 kr har doblet seg hvis banken tilbyr rente på 5%

Solution

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Math Problem Analysis

Mathematical Concepts

Exponential Growth
Doubling Time
Logarithms
Interest Rates

Formulas

Doubling Time Approximation: t ≈ 72 / r
Exponential Growth Formula: A = P(1 + r/100)^t
Logarithmic Formula: t = log(2) / log(1 + r/100)

Theorems

Rule of 72
Logarithmic Function

Suitable Grade Level

Grades 9-12