Data Sufficiency and Quantitative Analysis Problems

Problem Statement

What is the profit percentage on a sold item? Statement I: The selling price is ₹ 120. Statement II: The marked price is ₹ 150. Statement I alone is sufficient, but statement II alone is not sufficient. Statement II alone is sufficient, but statement I alone is not sufficient. Both statements I and II together are sufficient, but neither statement alone is sufficient. Statements I and II together are not sufficient. In how many days can K and P together complete a work? Statement I: If K works alone for 20 days and P alone for 10 days, the work gets completed. Statement II: K can complete the work in 28 days. Statement I alone is sufficient, but statement II alone is not sufficient. Statement II alone is sufficient, but statement I alone is not sufficient. Both statements I and II together are sufficient, but neither statement alone is sufficient. Statements I and II together are not sufficient. How many apples are in the basket? Statement I: There are 3 more apples than oranges in the