Find the curved surface area of a cone (in cm2) whose base diameter is 30cm, and the height is 20cm.\((\pi = 3.14)\)
The area of a rhombus with diagonals of lengths 4 cm and 5 cm, respectively, is:
The diameter of a solid sphere is 3 cm. It is melted and drawn into a wire of diameter 8 mm. The length of the wire is:
\(25 \tfrac{1}{4}\text{ cm}\)
\(26 \tfrac{3}{8}\text{ cm}\)
\(28 \tfrac{1}{8}\text{ cm}\)
\(32 \tfrac{1}{4}\text{ cm}\)
A trader sells an item at 25% profit. Had he bought it at 15% more and sold it for ₹147 more, he would have earned a profit of 30%. Find the cost price of the item.
By selling a TV set for ₹26,000, a seller earns 30% profit. If the production cost is increased by 10%, what should be the new selling price of a set so as to gain 15% profit?