Question

If light can travel 31 times around the world in 4 seconds, how many times can it circle the world in 10 seconds
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Answer 1

Answer:

77.5 times

Complete step-by-step answer:

Given, No. of times round taken in 4 seconds = 31

Now, we know it takes 4 sec for 31 rounds, so let’s try to find out how much round would have been made in 1 sec.

Therefore, No. of times round taken in 1 second =314

Now that we know the number of rounds in 1 sec , let us compute the number of rounds made in 10 seconds as per the question.

the number of rounds made in 10 seconds will be found out by the product of time(sec) and number of rounds made in 1 sec.

So, number of rounds made in 10 seconds =10×314=77.5

Therefore, light makes 77.5 times around the world in 10 seconds.

hope it help.