Answer:
91
Step-by-step explanation:
The first step is to find the median of the data set.
The median is the middle value of the data arranged in ascending order.
The data is in ascending order
12 36 48 49 57 63 81 82 91 92 93
↑middle value
The median = 63
The upper quartile is the middle value of the data to the right of the median
81 82 91 92 93
↑middle value
The upper quartile = 91
