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Challenge 127: Speed Check

curriculum/challenges/english/blocks/daily-coding-challenges-javascript/691b559495c5cb5a37b9b487.md

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--description--

Given the speed you are traveling in miles per hour (MPH), and a speed limit in kilometers per hour (KPH), determine whether you are speeding and if you will get a warning or a ticket.

  • 1 mile equals 1.60934 kilometers.
  • If you are traveling less than or equal to the speed limit, return "Not Speeding".
  • If you are traveling 5 KPH or less over the speed limit, return "Warning".
  • If you are traveling more than 5 KPH over the speed limit, return "Ticket".

--hints--

speedCheck(30, 70) should return "Not Speeding".

js
assert.equal(speedCheck(30, 70), "Not Speeding");

speedCheck(40, 60) should return "Warning".

js
assert.equal(speedCheck(40, 60), "Warning");

speedCheck(40, 65) should return "Not Speeding".

js
assert.equal(speedCheck(40, 65), "Not Speeding");

speedCheck(60, 90) should return "Ticket".

js
assert.equal(speedCheck(60, 90), "Ticket");

speedCheck(65, 100) should return "Warning".

js
assert.equal(speedCheck(65, 100), "Warning");

speedCheck(88, 40) should return "Ticket".

js
assert.equal(speedCheck(88, 40), "Ticket");

--seed--

--seed-contents--

js
function speedCheck(speedMph, speedLimitKph) {
  return speedMph;
}

--solutions--

js
function speedCheck(speedMph, speedLimitKph) {
  const speedKph = speedMph * 1.60934;

  if (speedKph <= speedLimitKph) {
    return "Not Speeding";
  }

  const over = speedKph - speedLimitKph;

  if (over <= 5) {
    return "Warning";
  }

  return "Ticket";
}