In a 240 meters race A beats B by 56 m or 7 seconds. A's time over the course is:	Choices.
A) 23 seconds	B) 12 seconds	C) 10 seconds	D) 18 seconds	E) 28 seconds
B runs 56 m in 7 sec.   =&gt; B runs 240 m in 7/56*240= 
<gadget id="calculator">7/56*240</gadget>
<output>30</output>
30 seconds   Since 23 seconds beats B by 7 seconds, 23 seconds runs 240 m in (30-7)= 
<gadget id="calculator">(30-7)</gadget>
<output>23</output>
23 seconds   Hence, 23 seconds's time over the course= 23 seconds   23 secondsNSWER:23 seconds
<result>A</result>
In a 240 meters race A beats B by 56 m or 7 seconds. A's time over the course is: