ITPEC IP April 2019 Question 4
Source exam: ITPEC IP April 2019Topic: Basic Theory
ITPEC IP April 2019 — Question 4 of 100
The two leftmost black squares represent 16 + 8 = 24. The examples reveal positional values 16, 8, 4, 2, and 1 from left to right: 2 marks the fourth position, 5 is 4 + 1, 10 is 8 + 2, and 21 is 16 + 4 + 1.
Answer (c)
Why not others:
- 12 would mark 8 and 4
- 20 would mark 16 and 4
- 30 would mark 16, 8, 4, and 2
Key rule: Five binary positions from left to right have place values 16, 8, 4, 2, and 1.
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