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What is the value of x after each of these statements is encountered in a computer program if x = 1 before the statement is reached.
a. If x + 2 = 3 then x:=x + 1
b. If (x + 1 = 3) OR (2x + 2 = 3) then x := x +1
c. If ((2x + 3) = 5) AND (3x + 4 = 2) then x:= x + 1
d. If x < 2 then x := x + 1
Expert Answer
x=1;
a)
if x+2=3 then x:=x+1;
Ans-
x+2=3
1+2=3
3=3 so x:=1+1;
x:=2;
b)
if((x+1=3)OR(2X+2=3))then x:=x+1;
Ans-
(x+1=3)OR(2X+2=3)
(1+1=3)OR(2*1+2=3)
(2=3)OR(4=3)
false OR FALSE
BOTH ARE FALSE SO false
X=1;
d) if(x<2)then x:=x+1;
Ans-
(1<2)
true
so
x:=x+1;
=1+1;
=2;
