JAMB Mathematics 2017 Objective — Question 14

Question 14 of 40 from the Joint Admissions and Matriculation Board (JAMB) Mathematics 2017 Objective paper, with the correct answer and a full explanation.

The operation below was carried out in base 2. Find the missing number: 1011 + 1111 = 11010; missing number = ?

A. A. 1001
B. B. 1000Correct
C. C. 1010
D. D. 1001

Explanation

Given a+b+c=d and a,b,c known, the missing addend/number found by binary subtraction is 1000.

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