Question

In 1989, a typical modem could transfer 2.4 kilobytes, or 2,400 bytes of information per second. Today, a typical modem can transfer 1 megabyte, or 1,000 kilobytes of information in 0.65 seconds. How many times faster is today's modem than a modem from 1989?

Answer 1

641 times

Explanation:

Rate of transfer in 1989

2.4 kilobytes per second

Rate of transfer in a typical modem

1000 kilobyte per 0.65 seconds

Transfer per second for typical modem

1000/0.65=1538.461538 kilobyte per second

Comparing typical modem to 1989

`\frac {1538.461538 kilobyte/s}{2.4 kilobyte/s}`

=641.025641 times faster

Rounding off, this is 641 times faster

Therefore, ans=641 times