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O.L maths problem

FunkyOxygen · 2011-06-12 14:48:00

e-xamit won't load for me so i would really appreciate the help anyone can give! Question 1c iii) Noriin ran a 5000 metre race on the above track (400m) in 15 minutes. Calculate, in seconds, the average time it took Noirin to complete one lap of this track during the race. Thanks!

12-06-2011 2:48pm

#1

FunkyOxygen

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Join Date: July 2010

Posts: 21

e-xamit won't load for me so i would really appreciate the help anyone can give! Question 1c iii)

Noriin ran a 5000 metre race on the above track (400m) in 15 minutes.
Calculate, in seconds, the average time it took Noirin to complete one lap of this track during the race.

Thanks!

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Comments

#2 12-06-2011 2:57pm

spurious

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5000m on a 400m track is 12.5 times around the track.
(5000 divided by 400 = 12.5)

15 minutes is 900 seconds.
(15 x 60 = 900)

900 seconds to do 12.5 laps, so 72 seconds per lap (on average).
(900 divided by 12.5=72)

The average time per lap is 72 seconds.

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