(ii)In a village of 50 farmers, 25 grow cashew nut and 16 grow both cashew nut and maize. If 10 farmers grow neither cashew nut nor maize, find the number of famers who grow maize only. Do not use Venn diagram.
(b)(i)A dealer sells mattresses whose cost price (C) is directly proportional to the selling price(s). If the selling price and the cost price of one mattress are Tsh. 20,000 and Tsh. 18,000, respectively, find the constant of proportionality
(ii) By using the answer obtained in part (b)(i), determine the equation that relates the cost price and the selling price.
(b)Antony wishes to buy black shirts and white shirts. He intends to buy at most black shirts. A black shirt costs Tsh. 24,000 while a white shirt costs Tsh. 30,000 and he is planning to spend up to Tsh. 180,000 for buying shirts.
How many shirts of each kind should be bought so as to have maximum number of shirts?
Find the greatest number of shirts that should be bought