SOLUTION: A city has 3200 houses out of which 3/4 are older than 100 years. if 1/3 of these old houses are renovated and an additional 800 new houses were built, what is the percentage of h

Question 1044426: A city has 3200 houses out of which 3/4 are older than 100 years. if 1/3 of these old houses are renovated and an additional 800 new houses were built, what is the percentage of houses that are not renovated?

Answer by robertb(5830) (Show Source): You can put this solution on YOUR website!
Of the 3,200 houses, are older than 100 years.
were renovated, and so 2,400 - 800 = 1,600 stayed unrenovated.
800 new houses built means that there are now 4,000 houses in total.
===> , or 40% of the houses are not renovated.
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