Answer:
42 sec
Step-by-step explanation:
the joggers are running the track in opposite direction. Lets take the fraction of the total track distance to be 1.
it takes 56 seconds for the first jogger to complete the track. They meet every 24 second. when they meet first jogger has completed [tex]\frac{24}{56}[/tex] of the track distance which is [tex]\frac{3}{4}[/tex].
Fraction covered by second jogger at point of meeting will be [tex]1-\frac{3}{7}[/tex]
=[tex]\frac{4}{7}[/tex]
this means the second jogger ran [tex]\frac{4}{7}[/tex] of track distance in 24 sec.
to run the complete track it would take 7/4 *24 =42 seconds
