Ahouse is purchased in 1990 and sold in 2002 for a profit of $45 000. if the ratio of cost price to profit is 21: 5, find:

a) the cost price

b) the selling price

c) the ratio of cost price to selling price

A= We place the profit, 45000 under the 5, since they are both profits.
21 : 5          
      45000.  
Then we cross multiply, We multiply 45000 by 21 and wwe divide it with the 5.  
And you will get the answer $189000