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  1. If a * b = a + b + a / b, Then the value of 12 * 4 is
    1. 48
    2. 19
    3. 20
    4. 21
Correct Option: B

Since a * b = a + b + a / b
∴ 12 * 4 = 12 + 4 + 12 / 4
= 12 + 4 + 3 = 19


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