Question 1005922
The race distance was supposed to be 400.00m,
but maybe it was really up to 0.5cm longer than that, at 400.005m,
or maybe it was really up to 0.5cm shorter than that, at 399.995m.
So, {{{399.995m<=distance<=400.005m}}} .
Maybe Martin finished in up to 0.05 second less than 1 minute, at 59.95 seconds,
or maybe Martin finished in up to 0.05 second less than 1 minute, at 60.05 seconds.
So, {{{60.05s>=time>=59.95s}}} .
Then,
{{{system(399.995m<=distance<=400.005m,60.05s>=time>=59.95s)}}}--->{{{399.995m/"60.05 s"<=distance/time<=400.005m/"59.95 s"}}}--->{{{6.61032}}}{{{m/s<=speed<=6.67231}}}{{{m/s}}} .
The numbers above were rounded to 6 significant figures, because they are intermediate results
Lower bound ={{{6.61032}}}{{{m/s}}}{{{(1km/"1000 m")(3600s/"1 h")="24.020 km /h"}}} (with 5 significant figures reported).
Upper bound ={{{6.67231}}}{{{m/s}}}{{{(1km/"1000 m")(3600s/"1 h")="23.980 km /h"}}} (with 5 significant figures reported).