Reading rate set definition?

reading rate is the amount or how fast u r reading......... as in its timing u.....that's all i can tell u pplz.....
Reading rate is based on texts of increasing difficulty. Rates of reading include reading for memorization (less than 100 words per minute), reading for learning (100-200 wpm), comprehension (200-400 wpm), and skimming (400-700 wpm).