Concept: The question tests on basics in statistics


Solution:

For such questions, assuming values/plugging in is the best approach that can give accurate and quick results.


For example, consider a simple value of 3 for Q


Then we are given that the median of 3 consecutive integers is 120

=> The 3 numbers would be 119,120 and 121


=>The largest integer is 121


=>Plug in the values of Q=3 to see which option yields 121


In option A which is (Q-1)/2 + 120 we have 1 + 120 =121

(option a)