(a) In a man's will, he gave \(\frac{2}{5}\) of the total acres of the farm to the wife and \(\frac{1}{3}\) of what is left to the family. The rest of the farm was to be shared amongst his three children in the ratio 3: 5: 2. Given that, the child who had the least share received 8 acres, calculate the:

(i) total acres the man left.

(ii) number of acres the wife received.

(b) The price of a Television set is $1,600.00. It can be purchased by a deposit of $400.00 and the rest of the amount paid by 12 monthly installments at 25% per annum simple interest. If the Television set is purchased by installment, find the total cost.