Maximizing Diesel Purchase Amount

The problem asks for the maximum amount one person could have spent on diesel, given the total sales, the number of customers, and a minimum purchase amount per person. To maximize one person's purchase, we must minimize the purchases of all other customers.

Details Provided:

• Total Sales Revenue: ₹15000
• Total Number of Customers: 150
• Minimum Purchase Amount per Customer: ₹50

Solving for Maximum Purchase

1. Identify the number of customers excluding the one individual whose maximum purchase we want to find.

   Number of other customers = Total Customers - 1

   Number of other customers = $150 - 1 = 149$

2. Calculate the minimum total amount these 149 customers could have spent. Each spent at least ₹50.

   Minimum spending by other customers = Number of other customers $\times$ Minimum Purchase Amount per Customer

   Minimum spending by other customers = $149 \times ₹50 = ₹7450$

3. Subtract this minimum total from the overall total sales to find the maximum amount the single remaining customer could have spent.

   Maximum Amount for One Customer = Total Sales Revenue - Minimum spending by other customers

   Maximum Amount for One Customer = $₹15000 - ₹7450 = ₹7550$

Thus, the maximum amount one person could have purchased is ₹7550.