Question

Consider the following 8 numbers, where one labelled x is unknown. 9 , 15 , 21 , x , 43 , 27 , 34 , 49 Given that the range of the numbers is 70, work out 2 values of x .

Answer 1

x = -21 and x = 79

Explanation:

The range is the largest number minus the smallest

If we assume 49 is the largest value.

49 - 70 = -21

If we assume 9 us the smallest value.

70 + 9 = 79