C++ MQCs with Explanation (CHAPTER 4: FUNCTIONS IN C++)

The following is the list of function declarations. Which one of them will be invoked by the function call statement cout <

1. int mul(int a, int b);
2. double mul(float a, float b);
3. double mul(int a, double b);
4. int mul(float a, int b);

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Answer: 

Option b: double mul(float a, float b);

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Explanation Here