Week 235 (11 February 2022)

Anna is a skier at the Winter Olympics.

She completed a ski race in 1 minute 54 seconds. The race was 475m in length.

Anna assumes that her average speed is the same for each race.

Using this assumption, can you work out how long Anna should take to complete a 700m race. Give your answer in minutes and seconds.

Answer:

S = D/ T  = 475/1.9 = 250 m/minute

T = D/ S = 700/ 250 = 2.8 = 2 minutes 48 seconds