An express traveled at an average speed of 100 km/hr, stopping for 4 min after every 75 km. How long did it take to reach its destination 600 km from the starting point ?	Select the correct option
A) 8 hrs 29 min	B) 6 hrs 28 min	C) 2 hrs 28 min	D) 6 hrs 28 min	E) 1 hrs 28 min
Explanation:   Time taken to cover 600 km = 600/100= 
<gadget id="calculator">600/100</gadget>
<output>6</output>
6 hrs.   Number of stoppages= 600/75 - 1= 
<gadget id="calculator">600/75 - 1</gadget>
<output>7</output>
7   Total time of stoppages= 4 x 7 = 28 min   Hence, total time taken = 6 hrs 28 min.   Answer: 6 hrs 28 min
<result>D</result>
An express traveled at an average speed of 100 km/hr, stopping for 4 min after every 75 km. How long did it take to reach its destination 600 km from the starting point ?