Each of the question below consists of a question and three statements number I, II and III given below it. You have to decide whether the data provided in the statement are sufficient to answer the question.
A dishonest shopkeeper professes to sell his articles at a cost price but uses a faulty scale while selling. What is the profit percentage the shopkeeper makes when he sells the article at a cost price?
Statement I. He uses a scale that weighs less by 25%.
Statement II. The cost price of the article is Rs. 30 per kg.
Statement III. If he has sold the articles at a 12.5% profit on cost price then his net profit percentage would have been 50%.
1. The data in statement I or III alone is sufficient to answer the question.
2. The data in statement I alone is sufficient to answer the question.
3. The data in statement I and II together are sufficient to answer the question.
4. The data in all the statements I, II, and III are not sufficient to answer the question.
5. None of the above.