The maximum mark of 60 students is 100 if it range is 75 the minimum work step by step

25

Step-by-step explanation:

Range is the difference between  the maximum and minimum value.

Range = Maximum - minimum

 minimum = Maximum - range = 100 - 75 = 25

25

Step-by-step explanation:

Range (R) = Max - Min

We change this to Min = Max - Range.

Let x be the minimum

x = 100 - 75

x = 25

The range is 25

(At least I think so... I might be wrong)

3< x< 5

step-by-step explanation:

|x - 4| < 1

there are two solutions, one positive and one negative.   remember to flip the inequality when taking the negative solution

x-4 < 1       x-4 > -1

add 4 to each side

x-4+4 < 1+4       x-4+4 > -1+4

x< 5                 x> 3

3< x< 5

depends on how many days you are talking about

step-by-step explanation: