EPISODE · Aug 10, 2026 · 2 MIN
Navy OAR Exam Prep 10, Rates Work and Combined Production
from Military Exam Prep
This podcast is made by Ran Chen, who holds an EA license, Insurance and Securities licenses (Series 6, 63, 65), and the CFP® designation. He is passionate about opening access to high-quality exam preparation resources and helping learners prepare more effectively for professional certification exams. In this episode you will learn: - How to calculate an individual's work rate as the reciprocal of the time taken (Rate = 1/Time). - Why you must always add individual work rates, not the times, to find the combined production rate. - The correct formula for solving combined work problems: (1/T1) + (1/T2) = 1/T_total. - How to handle problems with opposing forces, like filling and draining, by subtracting the negative rate. - The 'Flip 'em, Add 'em, Flip 'em back' mnemonic to quickly solve these questions on the exam. For more free exam prep tools, practice questions, and AI-powered explanations, visit https://open-exam-prep.com/ or YouTube Channel: https://www.youtube.com/@Open-exam-prep
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Navy OAR Exam Prep 10, Rates Work and Combined Production
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