Question

A:=10 b:=8 b:=a*b+4 a:=2*(b-4)+a

Answer 1

B=84, a=170
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Answer 2

Let's go through the given statements one by one and evaluate the values of variables A and B step by step:

1. A := 10: We assign the value 10 to variable A. A = 10, B = (undefined until the next assignment)

2. b := 8: We assign the value 8 to variable B. A = 10, B = 8

3. b := a * b + 4: We use the current values of A and B to calculate the new value of B. B = 10 * 8 + 4 = 80 + 4 = 84

4. a := 2 * (b - 4) + a: We use the current values of A and B to calculate the new value of A. A = 2 * (84 - 4) + 10 = 2 * 80 + 10 = 160 + 10 = 170

Now, the final values of the variables are: A = 170, B = 84