Test Index

WAEC Computer Studies 2014 Paper

Question : 43

Total: 50

Given that 26

_10

_2

, X is _________

Solution:

Concept:

Convert a decimal number to binary using repeated division by

2

Explanation:

Divide

26

2

repeatedly and note each remainder.

26 \div 2 = 13

remainder

0

13 \div 2 = 6

remainder

1

6 \div 2 = 3

remainder

0

3 \div 2 = 1

remainder

1

1 \div 2 = 0

remainder

1

Now read the remainders from bottom to top:

11010

Answer:

X = 11010_2

, so the correct option is B.

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