cole drove from home to work at an average speed of 75 kmh . he then returned home at an average speed of 105 kmh . if the round trip took a total of 2 hours , how many minutes did it take cole to drive to work ?
"let the distance one way be x time from home to work = x / 75 time from work to home = x / 105 total time = 2 hrs ( x / 75 ) + ( x / 105 ) = 2 solving for x , we get x = 175 / 2 time from home to work in minutes = ( 175 / 2 ) * 60 / 75 = 70 minutes ans = b"
multiply(divide(multiply(105, 2), add(75, 105)), const_60)