Question

C++ Practice questions. Need a clear solution with explained for study

Question 4: Consider the following C++ program int x, y, double z x-23; int y=42; int z=13;. x+= x -2; cout<<x<<","<<y<<endl; z=z* 3; y-- cout <<y<","<<z<<endl<<endl; int w; w=x + y + z; W -1 cout << w; Note: - You will need to do multiple computations (calculations throughout this question. - The use of a calculator is not necessary for these simple calculations. - Take your time and remember your order of operations. (PEMDAS)

Answer 1

answer)

int x,y;
double z;
x=23;//Initially x value is :23
y=42;//Initially y value is :42
z=13;//Initially z value is :13
x+=x-2;//Value of x after x+=x-2 is :44 since x+=x-2 is same as x=x+x-2=23+23-2=44
y++;//here y value is incremented by 1
cout<<x<<","<<y<<endl;//here x and y values becomes 44 and 43
z=z*3;//Value of z after z=z*3 is :39
y--;;//here y value is decremented by 1
cout<<y<<","<<z<<endl<<endl;//here y and z values becomes 42 and 39
int w;
w=x+y+z;//Value of w after w=x+y+z is :125
w--;//w is decremented by 1
cout<<w;//here w is 124

Output is:

44,43 42,39 124 ... Program finished with exit code o Press ENTER to exit console.]

Answer 2

answer)

int x,y;
double z;
x=23;//Initially x value is :23
y=42;//Initially y value is :42
z=13;//Initially z value is :13
x+=x-2;//Value of x after x+=x-2 is :44 since x+=x-2 is same as x=x+x-2=23+23-2=44
y++;//here y value is incremented by 1
cout<<x<<","<<y<<endl;//here x and y values becomes 44 and 43
z=z*3;//Value of z after z=z*3 is :39
y--;;//here y value is decremented by 1
cout<<y<<","<<z<<endl<<endl;//here y and z values becomes 42 and 39
int w;
w=x+y+z;//Value of w after w=x+y+z is :125
w--;//w is decremented by 1
cout<<w;//here w is 124

Output is:

44,43 42,39 124 ... Program finished with exit code o Press ENTER to exit console.]