Question

Arrange the following marks obtained by students in ascending order and represent them on the number line 12, 4, 6, (-1), (-3 ). What is the difference between the student who scored the highest mark and the one who scored the lowest? [3 MARKS]

Answer 1

Ascending order : 1 Mark
Number Line : 1 Mark
Difference: 1 Mark

Marks obtained by the students = 12, 4, 6 , (-1), (-3 )

Marks arranged in ascending order = (-3) , (-1), 4, 6, 12

So, the difference between the highest scorer and the lowest scorer=12-(-3)=12+3=15.
Hence, the difference between the highest scorer and the lowest scorer is 15.