One hour before John started walking from P to Q, a distance of 33 miles, Ann had started walking along the same road from Q to P. Ann walked at a constant speed of 3 miles per hour and John at 2 miles per hour. How many miles had Ann walked when they met? Choose the correct choice from the following
A) 6 miles	B) 8,4 miles	C) 9 miles	D) 9,6 miles	E) 21 miles
Ann walks from Q to P at a speed of 3 miles/hr for one hour. She covers 3 miles in 1 hour and now distance between John and Ann is   33 - 3= 
<gadget id="calculator">  33 - 3</gadget>
<output>30</output>
30 miles.   Ann walks at 3 mph and John at 2 mph so their relative speed is   3+2= 
<gadget id="calculator">  3+2</gadget>
<output>5</output>
5 mph.   They have to cover 30 miles so it will take them  30/5= 
<gadget id="calculator"> 30/5</gadget>
<output>6</output>
6 hours to meet.   In 6 hrs, Ann would have covered 6 hrs * 3 miles per hour= 18 miles.   Adding this to the 3 miles she covered before John, Ann covered a total of 3 + 18= 
<gadget id="calculator">3 + 18</gadget>
<output>21</output>
21 miles.   Answer (21 miles)
<result>E</result>
One hour before John started walking from P to Q, a distance of 33 miles, Ann had started walking along the same road from Q to P. Ann walked at a constant speed of 3 miles per hour and John at 2 miles per hour. How many miles had Ann walked when they met?