1. Find how long will it take for money to triple at {0.05, m = 2} The rule of 72 provides a fast computation in finding the number of years required to double an amount at a given interest rate, just divide the interest rate into 72. For example, if you want to know how long it will take to double your money at 6%, divide 72 by 6 and get 9 years. The rule of 72 is accurate, as long as the interest rate is less than 20%. If the unknown is the interest rate, run backward. Hence to double an amount in 8 years, just divide 72 by 9 to find that it will require an interest rate of about 8%.
1. Find how long will it take for money to triple at {0.05, m = 2} The rule of 72 provides a fast computation in finding the number of years required to double an amount at a given interest rate, just divide the interest rate into 72. For example, if you want to know how long it will take to double your money at 6%, divide 72 by 6 and get 9 years. The rule of 72 is accurate, as long as the interest rate is less than 20%. If the unknown is the interest rate, run backward. Hence to double an amount in 8 years, just divide 72 by 9 to find that it will require an interest rate of about 8%.
Essentials Of Investments
11th Edition
ISBN:9781260013924
Author:Bodie, Zvi, Kane, Alex, MARCUS, Alan J.
Publisher:Bodie, Zvi, Kane, Alex, MARCUS, Alan J.
Chapter1: Investments: Background And Issues
Section: Chapter Questions
Problem 1PS
Related questions
Question
1. Find how long will it take for money to triple at {0.05, m = 2}
The rule of 72 provides a fast computation in finding the number of years required to double an
amount at a given interest rate, just divide the interest rate into 72. For example, if you want to know how
long it will take to double your money at 6%, divide 72 by 6 and get 9 years. The rule of 72 is accurate, as
long as the interest rate is less than 20%. If the unknown is the interest rate, run backward. Hence to double
an amount in 8 years, just divide 72 by 9 to find that it will require an interest rate of about 8%.
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by step
Solved in 2 steps
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, finance and related others by exploring similar questions and additional content below.Recommended textbooks for you
Essentials Of Investments
Finance
ISBN:
9781260013924
Author:
Bodie, Zvi, Kane, Alex, MARCUS, Alan J.
Publisher:
Mcgraw-hill Education,
Essentials Of Investments
Finance
ISBN:
9781260013924
Author:
Bodie, Zvi, Kane, Alex, MARCUS, Alan J.
Publisher:
Mcgraw-hill Education,
Foundations Of Finance
Finance
ISBN:
9780134897264
Author:
KEOWN, Arthur J., Martin, John D., PETTY, J. William
Publisher:
Pearson,
Fundamentals of Financial Management (MindTap Cou…
Finance
ISBN:
9781337395250
Author:
Eugene F. Brigham, Joel F. Houston
Publisher:
Cengage Learning
Corporate Finance (The Mcgraw-hill/Irwin Series i…
Finance
ISBN:
9780077861759
Author:
Stephen A. Ross Franco Modigliani Professor of Financial Economics Professor, Randolph W Westerfield Robert R. Dockson Deans Chair in Bus. Admin., Jeffrey Jaffe, Bradford D Jordan Professor
Publisher:
McGraw-Hill Education