suppose jay has travlled x miles,ben has travelled 8-x miles and they meet after time t
for jay: d=x mile, t=t hour and r=5mph
therefore x=5 t
or t=x/5 ...(1)
for ben: d=(8-x) mile, t=t hour and r=7mph
therefore 8-x=7 t
or t=(8-x)/5 ...(2)
from eqns.1 and 2
we have
x/5 = (8-x)/7
or 7x … Read more
