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Challenge 113: Miles to Kilometers

curriculum/challenges/english/blocks/daily-coding-challenges-python/69162d64f96574d9bb629efe.md

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--description--

Given a distance in miles as a number, return the equivalent distance in kilometers.

  • The input will always be a non-negative number.
  • 1 mile equals 1.60934 kilometers.
  • Round the result to two decimal places.
  • Remove unnecessary trailing zeros from the rounded result.

--hints--

convert_to_km(1) should return 1.61.

js
({test: () => { runPython(`
from unittest import TestCase
TestCase().assertEqual(convert_to_km(1), 1.61)`)
}})

convert_to_km(21) should return 33.8.

js
({test: () => { runPython(`
from unittest import TestCase
TestCase().assertEqual(convert_to_km(21), 33.8)`)
}})

convert_to_km(3.5) should return 5.63.

js
({test: () => { runPython(`
from unittest import TestCase
TestCase().assertEqual(convert_to_km(3.5), 5.63)`)
}})

convert_to_km(0) should return 0.

js
({test: () => { runPython(`
from unittest import TestCase
TestCase().assertEqual(convert_to_km(0), 0)`)
}})

convert_to_km(0.621371) should return 1.

js
({test: () => { runPython(`
from unittest import TestCase
TestCase().assertEqual(convert_to_km(0.621371), 1)`)
}})

--seed--

--seed-contents--

py
def convert_to_km(miles):

    return miles

--solutions--

py
def convert_to_km(miles):
    km = miles * 1.60934
    return round(km, 2)