Aravind started a taxi company three months back with three cars and three drivers for these cars. All three cars are linked to a web$-$based cab aggregator portal. Driver Kumar likes to start his job in the early mornings and does his job from $6$am to $2$pm$.$ Driver Justin does some odd jobs in the mornings and therefore likes to drive from $2$pm to $10$pm$.$ Driver Raj is a night$-$bird who starts at $10$ and does a full night up to $6$am$.$ Aravind is ok with these timings as all his drivers are doing $8-$hour shifts, and all of them bring good returns to him. Aravind plans to buy a fourth car and wants to drive the new car during the time slot that brings him the best returns. On checking his accounts book, he got the daily collections of all the three cars for the last three months.Can you help Aravind see if there is a slot that yields more revenue than the others or do all the slots yield the same revenue? You may explain the procedure. No numerical illustration is required.