Albert sells a cycle to Ben at a profit of 20% & Ben sells it to Cindy at a profit of 25%. If Cindy pays $1500, what did Albert pay for it?

This is how I tried:

Let Cost Price (C.P.) of Albert be 100

Profit Percentage of Albert=20%

So Selling Price (S.P.) of Albert (to Ben)=100+(20% of 100)=120

Profit Percentage of Ben=25%

So S.P. of Ben (to Cindy)=120+(25% of 120)=150

Now how do I proceed ahead?

Thanks,

Ron