If the range of the set of numbers {140, 80, 135, 110, 175, 145, x, 123, 136} is 115, which of the following could be x?
Choices
A) 40  B) 45  C) 50  D) 55  E) 60
The range of the other 8 numbers is 175-80= 
<gadget id="calculator">175-80</gadget>
<output>95</output>
95, so x must be either the smallest number or the largest number in the set.   Then x= 175-115= 
<gadget id="calculator">175-115</gadget>
<output>60</output>
60 or x= 80+115= 
<gadget id="calculator">80+115</gadget>
<output>195</output>
195   The answer is 60.
<result>E</result>
If the range of the set of numbers {140, 80, 135, 110, 175, 145, x, 123, 136} is 115, which of the following could be x?