John entered a cross-country ski race. The first part of the race was 14 km long, and he completed it in 1 hour. The second part was 19 km long, and he completed this part in an hour and a half. What was John's average speed for the whole race?
SteveSGobs 2 years ago
John entered a cross-country ski race. The first part of the race was 14 km long, and he completed it in 1 hour. The second part was 19 km long, and he completed this part in an hour and a half. What was John's average speed for the whole race?
SteveSGobs 2 years ago