Q1) ABC Ltd. Produces room coolers. The company is considering whether it should continue to manufacture air circulating fans itself or purchase them from outside. Its annual requirement is 25000 units. An outsider vendor is prepared to supply fans for Rs 285 each. In addition, ABC Ltd will have to incur costs of Rs 1.50 per unit for freight and Rs 10,000 per year for quality inspection, storing etc of the product.