The following are the marks obtained by some students in a test: 12, 4, 6, (-1), (-3 ). What is the difference between the student who scored the highest mark and the one who scored the lowest?

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Solution

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.

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The following are the marks obtained by some students in a test: 12, 4, 6, (-1), (-3 ). What is the difference between the student who scored the highest mark and the one who scored the lowest?

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.

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.