Find the **CBSE Class 12 Mathematics Practice Paper (Set – IV)** for the coming exam. These questions not only help the students to prepare for exams in a better manner but also help them in understanding the depth with which a topic should be studied.

**Few sample questions from the Question Paper are given below:**

**Q.** Two unbiased dice are thrown. Find the probability that neither a doublet nor a total of 10 will appear?

**Q.** Prove that the radius of the right circular cylinder of greatest curved surface area which can be inscribed in a given cone is half of that of the cone.

**Q.** A factory can hire two tailors A and B in order to stitch pants and shirts. Tailor A can stitch 6 shirts and 4 pants in a day. Tailor B can stitch 10 shirts and 4 pants in a day. Tailor A charges Rs.15 per day and tailor B charges Rs.20 per day. The factory has to produce minimum 60 shirts and 32 pants. State as a linear programming problem and minimize the labour cost.

**Q.**** **Let * be a binary operation on N given by a * b = HCF (a, b) where a, b N. Write the value of 6 * 4.

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