problem
At 15 mph, how far do you travel in 2 hours and 8 mins?,
The answer is 32, out of which 15x2=30,... But how would I figure out the distance in 8 min??, surely there should be an easier way than 15X0,133... I mean, to multiply that in your head ain't easy
What speed covers 95 miles in 25 mins?, now this one... 95000/416?=228 --> are we suppsd to know how to do this mentally?