How to become a Lightning Calculator by Anonymous is part of the HackerNoon Books Series. You can jump to any chapter in this book . Short Method to Find the Interest of a Given Sum. here Short Method to Find the Interest of a Given Sum. Reduce the time to months, and to the number thus found annex one-third of the days, which whole number multiplied by one-half of your principal will produce you the required interest in dollars, cents and mills, at 6 per cent. If days only are given, multiply one-third of the days by one-half of the principal for the required interest at 6 per cent. Note these exercises: $250 at 6% for 8 mos. 6 ds. = 82 × 125 = $10.25. $250 at 6% for 93 ds. = 31 × 125 = $3.88. $250 at 6% for 9 mos. = 9 × 125 = $11.25. In some respects this rule is superior to the well-known 60-day method of reckoning interest. About HackerNoon Book Series: We bring you the most important technical, scientific, and insightful public domain books. This book is part of the public domain. Anonymous (2021). How to become a lightning calculator. Urbana, Illinois: Project Gutenberg. Retrieved https://www.gutenberg.org/cache/epub/65078/pg65078-images.html This eBook is for the use of anyone anywhere at no cost and with almost no restrictions whatsoever. You may copy it, give it away or re-use it under the terms of the Project Gutenberg License included with this eBook or online at , located at . www.gutenberg.org https://www.gutenberg.org/policy/license.html

Short Method to Find the Interest of a Given Sum.

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