Answer:
For the new set of marks, the median is of 55
Step-by-step explanation:
The median is the halfway point of a dataset, that is, the value that separates the lower 50% of the data set from the upper 50%.
In a data set, if we subtract or add all marks by x, the median will be subtracted or added by x.
In this question, we have that:
Median 65
From all marks, 10 is subtracted.
So, for the new set of marks, the median is of 65 - 10 = 55
