Python-Quizzes | Python List Quiz | Question 25

Question 25: Find the output of the following program:

def REVERSE(L):
    L.reverse()
    return(L)
def YKNJS(L):
    List = []
    List.extend(REVERSE(L))
    print(List)

L = [1, 3.1, 5.31, 7.531]
YKNJS(L)

(A) [1, 3.1, 5.31, 7.531]
(B) [7.531, 5.31, 3.1, 1]
(C) IndexError
(D) AttributeError: ‘NoneType’ object has no attribute ‘REVERSE’


Answer: (B)

Explanation: REVERSE() reverses the list and returns it. YKNJS() adds reverse of a list L to the empty list List. L = [1, 3.1, 5.31, 7.531], gets reversed and becomes [7.531, 5.31, 3.1, 1].

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