Identify the missing digits in the following expression so that the left hand…
2018
Identify the missing digits in the following expression so that the left hand side is equal to the right hand side.
(1010?)2 + (?7)8 = (24)16
- A.
1, 2
- B.
1, 1
- C.
1, 6
- D.
0, 1
Attempted by 56 students.
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Correct answer: B
Convert the right side hexadecimal (24)16 to decimal, which is 36. Test digit 1 for the binary (1010?)2, yielding 21 in decimal. Test digit 1 for the octal (?7)8, yielding 15 in decimal. Adding 21 and 15 equals 36, confirming the missing digits are both 1.