Question

Thunder from a bolt of lightning travels 1/10 mile in 1/2 second. At this rate, how many miles can it travel in one second?

Answer 1

Answer:

After you see a flash of lightning, count the number of seconds until you hear the thunder. (Use the stop watch or count "One-Mississippi, Two-Mississippi, Three-Mississippi," etc.) For every 5 seconds the storm is one mile away. Divide the number of seconds you count by 5 to get the number of miles.

Answer 2

Thunder from a bolt of lightning can travel 1/5 miles in one second.

Given - Distance and time

Find - Distance travelled in one second

Solution - The distance travelled by thunder bolt from lightning in one second can be calculated using unitary method. So, to calculate we will relate the known distance with given time. Further, we will compare it at with desired time.

So, distance travelled in 1/2 second = 1/10 mile

Hence, distance travelled in 1 second = $\frac{ \frac{1}{10} }{ \frac{1}{2} }$

Shifting 2 to the numerator and 10 to the denominator. The new fraction will be -

Distance travelled in 1 second = $\frac{2}{10}$

Distance travelled in 1 second = 1/5 mile

Hence, thunder from a bolt of lightning can travel 1/5 miles in one second.

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