Index & Slicing python data science course practice

Question

Multiples of 3 & 5

You are given a task to find all of the whole numbers below 100 that are multiples of both 3 and 5.
Create an array of numbers below 100 that are multiples of both 3 and 5, and output it.

Here is my code
import numpy as np

x = np.arange(100)
nums = x[(x%3==0) & (x%5==0)]
for num in nums:
print(num)

The output is
0
15
30
45
60
75
90
But they still says that I am wrong. Please help!!!!

Answer 1

Alvin Nguyen

There are 2 things

1 - You should not include 0 because it is divisible by any number.

So do

x = np.arange(1, 100)

2 - You should not print each value in separate lines so just do

print(nums)

Finally complete solution:

import numpy as np

x = np.arange(1, 100)
nums = x[(x % 3 == 0) & (x % 5 == 0)]

print(nums)

Answer 2

There will be needed an array with these numbers as output.

Answer 3

thank you so much for the help guys. Its was confusing but just adding a 1 helped XD

Answer 4

nums=[]
for i in range(1,100):
if(i%3==0 and i%5==0):
nums.append(i)
print(nums)

or

nums=[i for i in range(1,100) if (i%3==0 and i%5==0)]
print(nums)

Answer 5

x = np.arange(1,100)

well, the confusion arises as we include zero as well which is a common multiple for all.

I solved this using 1 as starting value, but this can be solved using any 0 < num <= 15

I hope that clears your confusion.

Answer 6

plz answe sir

Answer 7

haha

Answer 8

https://code.sololearn.com/c3G7jKy33iEk/?ref=app
https://code.sololearn.com/WJfq7ceju1YW/?ref=app

Answer 9

answer 4