Question

There are 80 new houses being built in a neighborhood. Last month 2/5 of them were sold. This month, 1/8 of the remaining houses were sold. How many houses are left to be sold?

Answer 1

41 houses

Explanation:

Given the following data;

Total number of house = 80 houses

Fraction sold in the 1st month = 2/5

Fraction sold in the 2nd month = 1/8

To find the number of houses left unsold;

Number sold in the 1st month = 2/5 * 80

Number sold in the 1st month = 160/5

Number sold in the 1st month = 32 houses

Numbers of houses left = 80 - 32 = 48 houses

Number sold in the 2nd month = 1/8 * 48

Number sold in the 2nd month = 48/8 = 7 houses

Number of houses left = 48 - 7 = 41 houses