One of the merits of television as a medium of advertising is that it

The central working system of a computer used for data processing is the

An example of a computer operating system is

The arrangement and interrelationship of the various components and positions of a business is referred to as

Given:
                                                 ₦
Opening Stock                      1,800
Purchases                              2,800
Sales                                       8,000
Closing stock                            350
Carriage on sales                     500

Calculate the value of the unused stock.