Given parameters:
Total test score = 75marks
Percentage of Amelia score = 56%
Fraction of Hayden's score =
Sophie's score = 43marks
Unknown:
The person with the highest score = ?
Solution:
Since total score = 75marks;
Amelia's score = = 42marks
Hayden's score = = 40marks
Sophie's score = 43 marks
The person with the highest score is Sophie with a mark of 43.