You run 100 meters in 15 seconds, 400 meters in 1 minute, and 800 meters in 2 minutes.
How long will it take you to run 1 kilometer if you continue running at the same speed? (Hint: 1 kilometer equals 1000 meters)
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The rate this individual is running is 100m per 15 seconds (distance/time). So, in order to run 1,000m, or 1 kilometer, it would take 150 seconds (15seconds x 10). 150 seconds is equal to 2.5 minutes (150 seconds divided by 60 seconds).
it requires 2 minutes to complete 800 m. then an another 30 seconds to finish off 200 m. so 2 min 30 seconds will be required to finish off 1km.
15 seconds = 100m
You know that 1km equals 1000m
so, 15*10 seconds= 1000m
150 seconds = 1000 metres
Change the seconds to minutes, which is 150/60= 2.5 minutes
I will take 2.5 min to run 1km (1000m) if continuing at same speed of 400m/min
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