MathematicsBinary operationsJAMB
The operation * is defined by a * b = ab − a − b + 2. Find x if x * 3 = 6.
Show answer
Answer: B. 3.5
x * 3 = 3x − x − 3 + 2 = 2x − 1 = 6, so x = 3.5.
An AdmitMe practice question, written for the JAMB syllabus. Not an official past question.