Hi Experts,
Recently I have come across an IR Table Analysis question that asked to compare between the MEANs and MEDIANs of 3 columns, each containing 21 ROWS and further each FIGURE was like 358,146 or 516,770.
At first glance only I was intrigued, but I thought there may be some SHORTCUT. But the explanation suggests to use CALCULATOR OR just ESTIMATE
By estimation too, we actually get very close values to the medians.
My question is: Is it a good IDEA to just GUESS this kind of Q and move on?? Because after spending 2-3 min if I find that I am in the middle of sea

that would be fatal to IR Section, where time is SO limited.
Any suggestions will be highly appreciated.
~Binit.