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Select the correct answerWhat is the value of the postfix expression 4 7 1 3 + – *?Options-1012741

Question

Select the correct answerWhat is the value of the postfix expression 4 7 1 3 + – *?Options-1012741

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Solution

The postfix expression is evaluated using a stack. Here are the steps:

  1. Push 4 onto the stack.
  2. Push 7 onto the stack.
  3. Push 1 onto the stack.
  4. Push 3 onto the stack.
  5. Pop two elements (3 and 1), add them, and push the result (4) onto the stack.
  6. Pop two elements (4 and 7), subtract the second from the first, and push the result (3) onto the stack.
  7. Pop two elements (3 and 4), multiply them, and push the result (12) onto the stack.

So, the value of the postfix expression 4 7 1 3 + - * is 12. Therefore, the correct answer is 12.

This problem has been solved

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