A train leaves Delhi at 9 a.m. at a speed of 30 kmph. Another train leaves at 2 p.m. at a speed of 40 kmph on the same day and in the same direction. How far from Delhi, will the two trains meet?  Select.
A) 648  B) 849  C) 600  D) 849  E) 940
Explanation:   D = 30 * 5= 
<gadget id="calculator">30 * 5</gadget>
<output>150</output>
150   RS= 40 – 30 = 10   T = 150/10= 
<gadget id="calculator">150/10</gadget>
<output>15</output>
15   D= 40 * 15= 
<gadget id="calculator">40 * 15</gadget>
<output>600</output>
600 km   Answer: Option 600
<result>C</result>
A train leaves Delhi at 9 a.m. at a speed of 30 kmph. Another train leaves at 2 p.m. at a speed of 40 kmph on the same day and in the same direction. How far from Delhi, will the two trains meet?