Raj opened a juice bar on his apartment rooftop, which became popular among students and young professionals.
He observed that demand for cold juices dropped on rainy or chilly days, while hot sunny days attracted more customers.
Running a special deal on orange juice resulted in a rush of customers, but Raj couldn't meet the demand due to limited supply.
Raj experimented with pricing and found that raising the price of watermelon juice slightly decreased the number of customers, but his earnings remained stable.