Question

If * is an operation such that a * b = 3a – 4b. find the value of 3*4

B –7 Correct Answer Incorrect Answer
C 7 Correct Answer Incorrect Answer
D –1 Correct Answer Incorrect Answer

Solution

 a * b = 3a – 4b a=3,b=4 3×3-4×4=9-16 = -7

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