Both Robert and Alice leave from the same location at 6:00 a.m. driving in the same direction, but in separate cars. Robert drives 30 miles per hour while Alice drives 40 miles per hour. After 6 hours, Alice’s car stops. At what time will Robert’s car reach Alice’s car?	Pick one:
A) 2 p.m. B) 3 p.m. C) 4 p.m. D) 8 p.m. E) 9 p.m.
6:00 am so 6 hours later is 12:00 pm   In six hours, Robert will have driven  6*30= 
<gadget id="calculator"> 6*30</gadget>
<output>180</output>
180 miles   In six hours, Alive will have driven 6*40= 
<gadget id="calculator">6*40</gadget>
<output>240</output>
240 miles   So Robert needs  240-180= 
<gadget id="calculator"> 240-180</gadget>
<output>60</output>
60 miles do catch Alice up.   So at 30 mph, he will need 2 hours   12:00 pm  + 2= 
<gadget id="calculator"> + 2</gadget>
<output>2</output>
2:00 pm   2 p.m.NS : 2 p.m.
<result>A</result>
Both Robert and Alice leave from the same location at 6:00 a.m. driving in the same direction, but in separate cars. Robert drives 30 miles per hour while Alice drives 40 miles per hour. After 6 hours, Alice’s car stops. At what time will Robert’s car reach Alice’s car?