Abstract:
A shopping trolley is supplied by a shop, especially supermarkets, for use by the
customers inside the shop for transport of merchandise between the isles of a supermarket
to the check-out counter during the period of shopping.
Generally customers collect the merchandise they need in the trolley and reach up to
billing counter for bills. At the counter usually there is long queue in which the customer
wasts a lot of precious time At that moment they realize that the merchandise they
purchased is over budget. So they reduce the merchandise until the cost is in their budget.
