ITPEC IP October 2022 Question 1
ITPEC IP October 2022 — Question 1 of 100
The two black squares represent 24. From the examples, the five positions have values 16, 8, 4, 2, and 1 from left to right: the fourth alone gives 2; the third plus fifth gives 5; the second plus fourth gives 10; and the first, third, and fifth give 21. Therefore black squares in the first two positions give 16 + 8 = 24.
Answer (c)
Why not others:
- 12 would use the 8 and 4 positions
- 20 would use 16 and 4
- 30 would use 16, 8, 4, and 2
Key rule: The squares form a five-bit binary place-value system with weights 16, 8, 4, 2, and 1.
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