(a) Given that u = 4, t = 5, a = 10 and s=ut+½at², find the value of s.

(b) The selling price of a gas cooker is GHC450.00. If a customer is allowed a discount of 20%, calculate the :
discount;
amount paid by the customer.

(c) A crate of minerals containing ten bottles of Coca Cola and fourteen bottles of Fanta was given to some children for a birthday party. If a child chose a drink at random from the crate, find the probability that it was Fanta.