The busiest time of the day for phone calls is 9am to 5pm. on average, each telephone is used to make four calls between 9am and 5pm. the mean call duration is 6 minutes. what is the maximum number of telephones, n, that an end office can support?

answer:

80

step-by-step explanation:

answer:

a simple telephone system consists of a single toll office, two end offices (also called "central offices") each connected to the toll office, and 2n wired telephones (n connected to each end office). the wires between each end office and the toll office each has 1mhz capacity in each direction. each active telephone call requires 4khz. calls that do not pass through the toll office are "local calls", and calls that do pass through the toll office are "long distance calls". ten percent of the calls are long distance calls. the busiest time of the day for phone calls is 9am to 5pm. on average, each telephone is used to make four calls between 9am and 5pm. the mean call duration is 6 minutes. what is the maxmium number of telephones, n, that an end office can support? (for this problem, don't worry about the blocking probability. just consider the average load on the network.)

step-by-step explanation:

in problems involving proportions, we can use cross products to test whether two ratios are equal and form a proportion. to find the cross products of a proportion, we multiply the outer terms, called the extremes, and the middle terms, called the means.

hope it

d

step-by-step explanation: