Computer Science for IGCSE & O level - Data Representation (Section 15 - No. 6)
A music file is 5MB in size. How much space does it use if it is saved in the same format, and is double the duration?
2.5MB
5MB
10MB
20MB
Giải thích
The size of a file is directly proportional to its duration. If the duration doubles the size will double.