Question

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

Answer 1

a = 2*8/4 = 4

b = (4+8) * (8-4) = 48.

Answer 2

Let's break down the code line by line:

1. A:=8 assigns the value 8 to the variable A.
2. b:=8 assigns the value 8 to the variable b.
3. a:=2*b/4 assigns the value 2 to the variable a, since b/4 is 2 when b is 8.
4. b:=(a+b) *(b-a) assigns the value -48 to the variable b, since (a+b) * (b-a) is (10) * (-6) when a is 2 and b is 8.

So at the end of the code, the variables A and a are unchanged and have the values 8 and 2 respectively. The variable b has been changed from 8 to -48.