You have the option of watching the videos at various speeds (25% faster, 50% faster, etc). To change the playback speed, click the settings icon on the right side of the video status bar.
- Video Course
- Video Course Overview
- General GRE Info and Strategies - 7 videos (free)
- Quantitative Comparison - 7 videos (free)
- Arithmetic - 42 videos
- Powers and Roots - 43 videos
- Algebra and Equation Solving - 78 videos
- Word Problems - 54 videos
- Geometry - 48 videos
- Integer Properties - 34 videos
- Statistics - 28 videos
- Counting - 27 videos
- Probability - 25 videos
- Data Interpretation - 24 videos
- Analytical Writing - 9 videos (free)
- Sentence Equivalence - 39 videos (free)
- Text Completion - 51 videos
- Reading Comprehension - 16 videos
- Study Guide
- Philosophy
- Office Hours
- Extras
- Prices
Comment on Mean, Median and Mode
These three examples have
These three examples have pretty much the same algebraic translations.
The manufacturer sold twice as many units of Q as P.
So, (number of units of Q sold) = 2(number of units of P sold)
There are twice as many employees in x as y
So, (number of employees in x) = 2(number of employees in y)
There are twice as many boys as girls
So, (number of boys) = 2(number of girls)
In general, if we are told " There are twice as many X's as Y's," we can write: X = 2Y
Pages