JAMB Mathematics 2013 Objective — Question 21
Question 21 of 50 from the Joint Admissions and Matriculation Board (JAMB) Mathematics 2013 Objective paper, with the correct answer and a full explanation.
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If a binary operation * is defined by x*y=x+2y, find 2*(3*4).
- A. A. 14
- B. B. 26
- C. C. 24Correct
- D. D. 16
Explanation
3*4=3+8=11; 2*11=2+22=24.
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