A man can buy a new house in 4 years with all of his earnings. But he spend the same amount in household expenses in 8 years and for savings in 12 years. How many time needed for buying the house? Choose the correct choice from the following choices:
A) 12
B) 20
C) 30
D) 15
E) 24
His savings in 1 year = 1/4 - (1/8+ 1/12) = 1/24   He can buy a new house in 24 years   ANSW24R:24
<result>E</result>
A man can buy a new house in 4 years with all of his earnings. But he spend the same amount in household expenses in 8 years and for savings in 12 years. How many time needed for buying the house?