Answer:
   28 ≤  x ≤40
Step-by-step explanation:
Arrange the data from the smallest to the largest 
26, 27, 28,32, 32, 33, 35, 36, 38, 40,42,48
Identify the median value
26, 27, 28,32, 32,<u> 33, 35</u>, 36, 38, 40,42,48
Getting the median 
(33+35)/2   =  68/2  = 34 minutes
You want your time to be last year's median time with an absolute deviation of at most 6 minutes
This mean ±6 minutes, hence this will be 34 ± 6
34+6=40  and 34-6=28
The inequality will be    28 ≤  x ≤40