JAMB Mathematics 2010 Objective — Question 26

Question 26 of 50 from the Joint Admissions and Matriculation Board (JAMB) Mathematics 2010 Objective paper, with the correct answer and a full explanation.

26. Evaluate |2 0 5; 4 6 3; 8 9 1|. A. -102 B. -42 C. 18 D. 102

A. -102Correct
B. -42
C. 18
D. 102

Explanation

Expanding along the first row: 2(6-27) + 5(36-48) = 2(-21) + 5(-12) = -42-60 = -102.

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