Two men started from the same place walk at the rate of 10kmph and 12kmph respectively. What time will they take to be 30 km apart, if they walk in the same direction?
Choose the correct choice from the following choices:  A) 15hours  B) 6hours  C) 8hours  D) 10hours  E) 12hours
To be 2km apart they take 1 hour   To be 10km apart they take = 1/2 * 30= 
<gadget id="calculator">1/2 * 30</gadget>
<output>15</output>
15 hours   15hoursnswer is 15hours
<result>A</result>
Two men started from the same place walk at the rate of 10kmph and 12kmph respectively. What time will they take to be 30 km apart, if they walk in the same direction?