What will be the output of following Python code?

a = 12     
b = 7.4     
c = 1       
a -= b
print(a, b)
a *= 2 + c
print(a)
b += a * c
print(b)

What will be output produced by following code? State reason for this output.

a = 5 - 4 - 3
b = 323  
print(a)     
print(b)     

What will be the output of following Python code?

x, y = 4, 8
z = x/y*y 
print(z)

What will be output produced by following code? State reason for this output.

a, b, c = 1, 1, 2
d = a + b
e = 1.0
f = 1.0
g = 2.0
h = e + f
print(c == d)
print(c is d)
print(g == h)
print(g is h)