Consider a small unit of a factory where there are 5 employees, a supervisor and four labourers. The labourers draw a salary of ₹9,000 per month each while the supervisor get ₹23,000 per month. Calculate median salary of this unit of factory.

The televisions manufactured in a factory are stored in two warehouses. They are then transported to the two shops. In the month of January, the first warehouse has 45 televisions and the second warehouse has 55 televisions. The first shop requires 53 televisions and The second shop requires 47 televisions. The televisions are transported from each warehouse to each of the two shops. If the requirement of each shop is fulfilled then represent the above information in terms of one matrix equation. Further, the transportation charges per unit area are Rs. 100 and Rs. 150 for the first and second shop respectively and the total transportation charges for the two warehouses are Rs. 10000 and Rs. 15000 respectively. Represent this information in terms of one matrix equation.