Three-quarters 32521

Daddy cycles the distance. 15 km in three-quarters of an hour. What distance will he travel in an hour? How long will it take for the son to cover this distance, which travels at an average speed of 15km per hour?


s1 =  20 km
t2 = 1:20 h Wrong answer

Step-by-step explanation:

s=15 km t=3/4=43=0.75 h  v1=s/t=15/0.75=20 km/h  T=1 h  s1=v1 T=20 1=20 km
v2=15 km/h t2=s1/v2=20/15=34=1.33333=1:20 h

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