The fastest modem for use on an analog telephone line operates at 56 kb/s in both directions. If an ADSL system has an upstream rate of 640 kb/s and a downstream rate of 1.5 Mb/s, by what factor does it exceed the modem data rate in each direction?

The fastest modem for use on an analog telephone line operates at 56 kb/s in both directions. If an ADSL system has an upstream rate of 640 kb/s and a downstream rate of 1.5 Mb/s, by what factor does it exceed the modem data rate in each direction?

The fastest modem for use on an analog telephone line operates at 56 kb/s in both directions. If an ADSL system has an upstream rate of 640 kb/s and a downstream rate of 1.5 Mb/s, by what factor does it exceed the modem data rate in each direction?

The fastest modem for use on an analog telephone line operates at 56 kb/s in both directions. If an ADSL system has an upstream rate of 640 kb/s and a downstream rate of 1.5 Mb/s, by what factor does it exceed the modem data rate in each direction?