If in a race of 90m, A covers the distance in 20 seconds and B in 25 seconds, then A beats B by: Pick one.
A) 20m
B) 16m
C) 11m
D) 10m
E) 18m
Explanation:   The difference in the timing of A and B is 5 seconds. Hence, A beats B by 5 seconds.   The distance covered by B in 5 seconds = (90 * 5) / 25= 
<gadget id="calculator">(90 * 5) / 25</gadget>
<output>18</output>
18m   Hence, A beats B by 18m.   ANSW18mR 18m
<result>E</result>
If in a race of 90m, A covers the distance in 20 seconds and B in 25 seconds, then A beats B by: