20 points
Reading grade
The Flesch-Kincaid grade level: 0.39 × (words per sentence) + 11.8 × (syllables per word) − 15.59. Syllables are counted by vowel groups, the usual shortcut, so a word or two may be off by one.
Points. Grade 8 or lower scores 20; up to 10 scores 14; up to 12 scores 8; above 12 scores 3. Under 30 words there is no grade.
Source. Kincaid, Fishburne, Rogers and Chissom (1975), Derivation of new readability formulas for Navy enlisted personnel, Naval Technical Training Command, Research Branch Report 8-75.