The ratio of green houses to white houses on Winthrop street is equal to 2 to 3.There are 60 white houses on Winthrop street.How many green houses are there?
There are 40 green houses because you but 2 over 3 and then there are 60 white houses and 3 times 20 is 60 and if you multiply that by 20 then you have to multiply 2 and 20 and you will get 40.