If the range of the set of numbers {150, 90, 125, 110, 170, 155, x, 100, 140} is 90, which of the following could be x?  Choose the correct choice from the following answers:  A) 80  B) 95  C) 110  D) 125  E) 140
The range of the other 8 numbers is 170-90= 
<gadget id="calculator">170-90</gadget>
<output>80</output>
80, so x must be either the smallest number or the largest number in the set.   Then x= 170-90= 
<gadget id="calculator">170-90</gadget>
<output>80</output>
80 or x= 90+90= 
<gadget id="calculator">90+90</gadget>
<output>180</output>
180   The answer is 80.
<result>A</result>
If the range of the set of numbers {150, 90, 125, 110, 170, 155, x, 100, 140} is 90, which of the following could be x?