A woman walks 15 km in 3 3/4 hours.
1.) How many kilometers dies she walk in 1/2 of an hour?
2.) How many kilometers does she walk in 1 1/6 hours?


Sagot :

First, convert 3 3/4 hours into an improper fraction for easier computation.  Thus, we get 15/4

1.) 15km : 15/4 hr = x km : 1/2
      15/2 = 15x/4
       x = 8 km
2.) Again, convert 1 1/6 into an improper fraction, yielding 7/6
     15km : 15/4 hr = x km : 7/6 hr
     (15)(7)/6 = 15x/4
      x = 28/6 hr = 14/3 hr = 4 2/3 hr = 4 hrs, 40 min

Hope this helps :)