Answer:
II. 2198₁₆
Explanation:
You want the product of D7 and 28 in hexadecimal.
Long multiplication
D7₁₆ × 28₁₆ = D7₁₆ × 20₁₆ + D7₁₆ × 8
= 1AE0₁₆ +6B8₁₆ = 2198₁₆
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Additional comment
A suitable calculator can figure this for you.
Here the multiplication can take advantage of the limited number of '1' bits in the binary representation of 28₁₆. Effectively, we only need to double D70 and halve D70 and add those values together.
The relevant decimal equivalents are A=10, B=11, D=13, E=14.
As with any place-value number system, numbers 1 place to the left have 16 times their value before shifting, where the base of the number system is 16.
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