Okay. So we see the number correct and incorrect. First, let's add the numbers to find the total amount of quesstions. 254 + 23 is 277. There was a total of 277 questions on the assesment. Now, all we have to do is divide the amount correct by the total number of questions. 254/277 is 0.9169675 and other numbers behind it or 0.92 when rounded to the nearest hundredth. Multiply that by 100 to convert to a percent 0.92 * 100 is 92. There. Sue's score was about 92%.
