Question

there are 75 new houses being built in a neighborhood. last month 2/5 of them were sold. this month 1/5 of the remaining houses were sold. how many houses are left to be sold

Answer 1

30

Explanation:

2/5+1/5=3/5 sold

1-3/5=2/5 unsold

2/5*75=150/5=30 houses left to sell