A man is paying 75 per mooth rent what amount can ho spend to buy a house having a 20 yeerr life if money is owoolth 5% and taxes that regays on new. houre will amount to an avelage of 15 per month. What is the value at the present time of an annual cost of 2400 for repairs to a distillation coloumn which has a life of 10yrs if money is for 8%% ? What is the capital cast of such expenditure for indefinit future time