60km/3hr = 20 km/hr
now do the others and pick the largest
Which is the greatest average speed?
i) 60 km in 3 h
ii) 68 km in 4 h
iii) 70 km in 5 h
5 answers
do km / hr
60/3 = 20
68/4 = 17
70/5 = 14
which is fastest?
60/3 = 20
68/4 = 17
70/5 = 14
which is fastest?
ii) 68 km in 4 h =17 km/hr
iii) 70 km in 5 h =14?? is that right??
iii) 70 km in 5 h =14?? is that right??
The twenty is the highest number
Sure enough.