A man walks at a rate of 10 mph. After every ten miles, he rests for 5 minutes. How much time does he take to walk 50 miles? Choose the correct choice from the following answers:
A) 300 B) 318 C) 320 D) 324 E) 330
To cover 50 miles the man needs (time) = (distance)/(rate) = 50/10= 
<gadget id="calculator">50/10</gadget>
<output>5</output>
5 hours= 300 minutes. He will also rest 4 times (after 10, 20, 30 and 40 miles), so total resting time = 4*5= 
<gadget id="calculator">4*5</gadget>
<output>20</output>
20 minutes.   Total time= 300 + 20= 
<gadget id="calculator">300 + 20</gadget>
<output>320</output>
320 minutes.   Answer: 320.
<result>C</result>
A man walks at a rate of 10 mph. After every ten miles, he rests for 5 minutes. How much time does he take to walk 50 miles?