 
 <prompt> ```Toby, di Alaskan Malamute, fit pull sled at a speed of 20 miles per hour if di sled no get load, but e fit pull di same sled at a speed of 10 miles per hour if di sled dey fully loaded. If Toby waka for 4 different parts, first e pull di loaded sled for 180 miles, then e pull di unloaded sled for 120 miles, then e pull di loaded sled for 80 miles, and finally, e pull di unloaded sled for another 140 miles, how many hours Toby go spend altogether dey pull di sled?``` <response>: ```Pulling a loaded sled at 10 mph for 180 miles takes 180/10=18 hours
Pulling an unloaded sled at 20 mph for 120 miles takes 120/20=6 hours
Pulling a loaded sled at 10 mph for 80 miles takes 80/10=8 hours
Pulling an unloaded sled at 20 mph for 140 miles takes 140/20=7 hours
In total, Toby go don pull the sled for 18+6+8+7=39 hours

Answer na 39.``` 