Question

A dictionary is declared as
V = {"p":25,"2":"A", 1:300,2: "B"}
Which of the following statements will be incorrect if written immediately after
the above declaration of V?
(a) V["P"]+=5 (b) V[1]+=10 (c) V["R"]=10 (d) V[3]+=5​

Answer 1

Answer:

(a) V["P"]+=5

Traceback (most recent call last):

File "<pyshell#1>", line 1, in <module>

V["P"]+=5

KeyError: 'P'

(b)

print(V[1]+=10)

SyntaxError: invalid syntax

(c)

print(V["R"]=10)

SyntaxError: keyword can't be an expression

(d)

print(V[3]+=5​)

SyntaxError: invalid syntax

Explanation: