Jan and Jo live 1,170 miles apart. At the same time, they start driving toward each other on the same road. Jo’s constant rate is 60 mph. Jan’s is 70 mph. How long will it take them to meet?
to get the time taken for Jan and Jo to meet we proceed as follows; Jan's speed=70 mph Jo's speed =60 mph distance between =1170 relative speed=70+60=130 time taken for them to meet will be: time=(distance)/(relative speed) =1170/130 =9 hours the answer is 9 hours
