If the range of the set of numbers {140, 80, 135, 110, 175, 145, x, 123, 136} is 115, which of the ...

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?

Quiz

Answer/Solution

60

Steps/Work

The range of the other 8 numbers is 175-80 = 95, so x must be either the smallest number or the largest number in the set.
Then x = 175-115 = 60 or x = 80+115 = 195
The answer is E.