Question 97935
 

   for 56 miles, the amount of gasoline required = 4 gallons

 so, for 1 mile, the amount of gasoline required = 4/56 gallons

  so, for 112 miles, the amount of gasoline required = (4/56) * 112 

                                                     = (1/14)*112

                                                     = 8 gallons