A certain hard disk has a data transfer rate of 20 MB/sec. How much time is required to transfer 5 megabyte data from this disk to memory?

A 20 sec.
B 1 sec.
C 0.5 sec.
D 0.25 sec.

Correct Answer: 20 sec.

Given data transfer rate is = 20MB/Sec that means the disk requires 1 Sec to transfer 20MB. So time required to transfer 5MB data will be 0.25Sec or 1/4 sec.
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