In a 80 meters race A beats B by 56 m or 7 seconds. A's time over the course is:  Choose the correct choice from the following answers: A) 3 seconds B) 12 seconds C) 10 seconds D) 18 seconds E) 28 seconds
B runs 56 m in 7 sec.   =&gt; B runs 80 m in 7/56*80= 
<gadget id="calculator">7/56*80</gadget>
<output>10</output>
10 seconds   Since 3 seconds beats B by 7 seconds, 3 seconds runs 80 m in (10-7)= 
<gadget id="calculator">(10-7)</gadget>
<output>3</output>
3 seconds   Hence, 3 seconds's time over the course= 3 seconds   3 secondsNSWER:3 seconds
<result>A</result>
In a 80 meters race A beats B by 56 m or 7 seconds. A's time over the course is: