Customers Arrive at a Bank at a Rate of One

question 46

Essay

Customers arrive at a bank at a rate of one every minute.The bank has 3 tellers and on average, it takes two minutes to service a customer.
(a)What proportion of time are the tellers busy?
(b)What is the average number of customers in the bank?
(c)What is the average weight time?

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Definitions:

Write Off

The accounting action of declaring that an asset is no longer collectible and recording its worth as zero, resulting in it being expensed.

Sales Revenue

The income received by a company from selling goods or services before any costs or expenses are subtracted.

Credit

The trust which allows one party to provide resources to another party wherein the second party does not reimburse the first party immediately but promises either to repay or return those resources at a later date.

Goods Received

The receipt of goods ordered by a company, often documented with a goods received note (GRN) that verifies the delivery and details of the goods.