Hex cash transactions scenario

[8/4, 18:31] Dr. Harish Ravi: Won't it be fun to do a few cash transaction in hexadecimal? We get very sad without it coding..

[8/4, 18:40] Dr. Harish Ravi: Ok 15 rs in hand cost 12 re.. so I gave f re and kept 3 re change while giving c re.

[8/4, 18:41] Dr. Harish Ravi: So little money in head after learning hexadecimal.. need larger numbers.. let's try..

[8/4, 18:54] Dr. Harish Ravi: So if you had 0xfa rupees and had to pay 0x84 re you get 0x76 as change or 250 -132=118.. atleast got hundreds place cash in head.. to become more and more needs hard work..

[8/4, 18:58] Dr. Harish Ravi: 0xf0000 is 15 k re and spending 0xe0000 or 14 k re gives 0x10000 as change..

[8/4, 19:10] Dr. Harish Ravi: To take it higher we have to imagine 16 re notes 256 re notes and 4096 re notes and give an example with that..

[8/4, 19:10] Dr. Harish Ravi: To take it higher we have to imagine 16 re notes 256 re notes and 4096 re notes and give an example with that..