There is no proportion showing
The answer should be 3.5 (sorry if i'm wrong) You list the numbers from lowest to highest and then subtract the third quartile from the first quartile.
500-250=250 so if there were 50 more cheeseburgers it would be 300 cheeseburgers so they would of have to sold 200 hamburgers on Wednesday to have sold 500 burgers in total do the answer is 200 hamburgers
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