This is the speed of light in a vacuum, rounded to the nearest hund...

Q: This is the speed of light in a vacuum, rounded to the nearest hundred thousand kilometres per second.

Survey says top answers: 1. 300,000 km per second (400 points); 2. 30,000 km per second (0 points); 3. 3,000,000 km per second (0 points); 4. 3,000 km per second (0 points). The number one answer is "300,000 km per second" with 400 points. This Family Feud style question has 4 popular survey responses.

Survey says! Here are the top 4 answers based on popular survey responses.

QThis is the speed of light in a vacuum, rounded to the nearest hundred thousand kilometres per second.

#1300,000 km per second400

#230,000 km per second0

#33,000,000 km per second0

#43,000 km per second0

Total points: 400. The #1 answer "300,000 km per second" is worth 400 points. Use these Family Feud style survey answers for your game night!

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This is the speed of light in a vacuum, rounded to the nearest hundred thousand kilometres per second.

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