Neco 2019 Computer Studies Question 50

Practice objective / multiple choice question 50 from the 2019 Neco Computer Studies examination.

Neco 2019 Computer Studies Objective / Multiple Choice Medium Difficulty
Question 50 NECO • 2019 • COMPUTER_STUDIES • objective

A text file contains 10 000 characters, each chosen from an alphabet of 64 symbols. The file is stored using a fixed‑length 6‑bit code per character. A new compression algorithm reduces the average code length to 4.2 bits per character. Calculate: a) the compression ratio (original size ÷ compressed size), expressed to two decimal places; b) the percentage reduction in file size, expressed as a whole number percentage.

Answer Options

A. 1.50; 33%
B. 1.33; 28%
Correct Answer C. 1.43; 30%
D. 1.40; 25%
Correct Answer
C
Correct Option:
1.43; 30%

About This Question

This is Neco 2019 Computer Studies Question 50. It is one of the objective questions from the 2019 Neco Computer Studies examination.

Difficulty level: Medium .

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