Hello!
To find the upper quartile you first have to find the median
List the numbers from least to greatest
32, 35, 38, 40, 42, 46, 48, 48, 51, 52, 53, 54, 56, 60
The median is 48
To find the upper quartile you find the median of the numbers greater than the median
List the numbers higher than 48
51, 52, 53, 54, 56, 60
The median is 53.5
The answer is 53.5
Hope this helps!