Problema Solution

There are

72

new houses being built in a neighborhood. Last month,

1/3

of them were sold. This month,

5/8

of the remaining houses were sold. How many houses are left to be sold?

Answer provided by our tutors

let 'x' represent the number of houses left to be sold


(1/3)72 + (5/8)(1 - 1/3)*72 + x = 72


by solving we find:


x = 18 houses


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there are 18 houses left to be sold.