Question 881581
The range is the difference between the maximum value of a set and the minimum value of a set. 
If we assume x is the maximum value then the minimum value of the set is 90 and
{{{x-90=95}}}
{{{x=15}}}
If we assume x is the minimum value then the maximum value of the set is 170 and
{{{170-x=95}}}
{{{x=75}}}