Mr. Tombali bought a piece of land for _currency_ 500,000 and later sold it making a profit of 10%.
The selling price of the land was:
500,000 FCFA.
550,000 FCFA.
450,000 FCFA.
50,000 FCFA.
An article is sold at a 20% profit on the cost price.
The ratio of the cost price to the selling price:
6:5.
5:6.
4:5.
5:4.
