Post a New Question
posted by vincent on Saturday, August 3, 2013 at 10:52am.
To obtain a final average of 80 % in a certain subject, what grade must a student earn in a test after having an average of 77.5 % in four examinations ?
77.5 * 4 = 310 500 * 0.8 = 400 400 - 310 = 90
More Related Questions