Question

A 10MB file is compressed into a 2MB file for storage. What is the compression ratio?

A-1:5
B-5:1
C-20:1
D-10:1

Answer 1

(b)5:1

Step-by-step explanation:

Compression ratio is defined as the ratio between uncompressed size and compressed size i.e.,

Compression ratio=
`(Uncompressed size)/(Compressed size)`

Here 10MB is uncompressed size and 2MB is compressed size

So, Compression ratio=
`(10)/(2)` = 5:1