Question 1141292
Let d=s
so 200/p =150p-200
multiply by p both sides
200=150p^2-200p
rewrite as 150p^2-200p-200=0
divide everything by 50
3p^2-4p-4=0
(3p+2)(p-2)=0
p=2, only positive root
so at p=2, d=100 and s=100