Stalin and Heather are 20 miles apart and walk towards each other along the same route. Stalin walks at constant rate that is 1 mile per hour faster than heather's constant rate of 5 miles/hour. If Heather starts her journey 20 minutes after Stalin, how far from the original destination has Heather walked when the two meet? Choose the correct answer.
A) 4 miles	B) 6 miles	C) 9 miles	D) 10 miles	E) 12 mile
Original distance between S and H = 20 miles.   Speed of S = 5+1= 
<gadget id="calculator">5+1</gadget>
<output>6</output>
6 mph, Speed of H= 5 mph.   Time traveled by H = t hours ---&gt; time traveled by S = t+20/60 = t+2/6 hours.   Now, the total distances traveled by S and H = 20 miles ---&gt; 6*(t+2/6)+5*t=20 ---&gt; t= 8/11 hours. Thus H has traveled for 8/11 hours giving you a total distance for H = 5*8/11 ~ 4 miles.   A is thus the correct answer.   P.S.: based on the wording of the question, you should calculatehow far from theoriginal destination has Heather walkedwhen the two meet. 'Original destination' for H does not make any sense. Original destination for H was situated at a distance of 20 miles.
<result>A</result>
Stalin and Heather are 20 miles apart and walk towards each other along the same route. Stalin walks at constant rate that is 1 mile per hour faster than heather's constant rate of 5 miles/hour. If Heather starts her journey 20 minutes after Stalin, how far from the original destination has Heather walked when the two meet?