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

Answer:

(b)5:1

Explanation:

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

Compression ratio=$\frac{Uncompressed size}{Compressed size}$  

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

So, Compression ratio=$\frac{10}{2}$  = 5:1