|Sequential Rate Problems||Index|
John missed 5 problems on his math quiz. If there were 25 problems total, what was his per cent correct?The problem asks for the percent correct, but the number of missed problems and the total number of problems is given. Therefore the formula
number correct + number wrong = total.must be solved for
number correct = total - number wrong.first. This formula is then used to calculate the number correct which is used in a second formula to calculate the percent correct.
(number correct / total) X 100 = percent correct.Example 3: Mary got 7 question wrong on a 35 question quiz. What was her percent correct on the quiz?
The third type of Class I problems, sequential rate problems, requires a number of steps to achieve a solution.