Question 1172227
it is when 65+4.5x=90-2.5x, x being the number of weeks
7x=25
x=3 4/7 weeks.  There is not an integer answer.
after week 1 69.50 and 87.50
after week 2 74 and 85
after week 3 78.5 and 82.5
after week 4 83 and 80