[Solved] What will be the output of this code?import numpy as np arr = np.array([10, 15, 20, 25]) filtered = arr[(arr % 20) == 0] | NumPy

NumPy - Indexing and Slicing

What will be the output of this code?

import numpy as np
arr = np.array([10, 15, 20, 25])
filtered = arr[(arr % 20) == 0]

A[15 25]

B[10 20]

C[]

D[20]

Step-by-Step Solution

Solution:

Step 1: Calculate arr % 20 for each element
Results: 10%20=10, 15%20=15, 20%20=0, 25%20=5.
Step 2: Select elements where remainder is 0
Only 20 satisfies (arr % 20) == 0.
Final Answer:
[20] -> Option D
Quick Check:
Modulo zero elements = [20] [OK]

Quick Trick: Use modulo in boolean indexing to filter multiples [OK]

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