Please provide with explaination

2. Every day, you order take-out dinner from the nearby Chinese place and your roommate (b) Let T\" be the number of times, over the course of 71 days, that the Chinese food orders takeout from the shwarma place, which is a little farther away The Chinese comes rst Find take-out is delivered after an exponential waiting time with mean 10 minutes, whereas Iirn MT" 3 6n]. the shwarma arrives after an (independent) exponential waiting time with a mean of "m 20 minutes. Whoever gets their food rst always takes pity on the other and shares. (a) Let 5,, be the amount of time, over the course of n days, that you and your roommate spend waiting hung'rily before some food arrival Find lim 11115,. 3 7n]