INR is the currency of _____.
During an unstable period, the values of Dollar, Pound and Euro fluctuated across the week from Monday to Friday. Their values across the week in Indian Rupees (INR) are given in the figure below. Dollar, Pound and Euro are disguised in the table below as X,Y, Z without any order. Exchange rate of currency A to currency B is formulated as the amount of currency B one would get with the Indian Rupees he got by converting a unit of currency A into INR on a single day. If exchange rate of Pound to Euro is 4 on one of these days, all the following could be true EXCEPT: