Q. If x*y = 3x + 2y, Then 2*3 + 3*4 is equal to :
Answer: 29
Notes: $latex \because x * y = 3x + 2y$ $latex 2*3+3*4 = 3\times 2+2\times 3+3\times 3+2\times 4$ $latex = 6+6+9+8 = 29$ Hence option [C] is the right answer.

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