A train covers a certain distance at a speed of 250kmph in 4 hours. To cover the same distance in 2 hours, it must travel at a speed of  Choices: A) 400km/hr B) 500km/hr C) 600km/hr D) 700km/hr E) 800km/hr
Explanation:   Distance = 250×4 = 1000km   Required speed = (1000/2)= 
<gadget id="calculator">(1000/2)</gadget>
<output>500</output>
500km/hr   Answer: Option 500km/hr
<result>B</result>
A train covers a certain distance at a speed of 250kmph in 4 hours. To cover the same distance in 2 hours, it must travel at a speed of