IQR question "List $A$ contains a certain number..." [4272]

[user12309]

https://www.gregmat.com/problems/quant?problem=list-a-contains-a-certain-number

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Am I going crazy, isn’t the IQR calculated by taking away the upper median from the lower median? In that case, the answer should be C, the values are equal as the IQR of 1,2,3 is 1, while its range is 2.

[cylverixxx]

@user12309

isn’t the IQR calculated by taking away the upper median from the lower median?

Sounds about right

@user12309

the values are equal as the IQR of 1,2,3 is 1,

This result doesn’t match with the algorithm you described above