For the following questions answer them individually
What is the difference between Compound Interest and Simple Interest on Rs.1000 at 10% after 4 years?
A metallic sphere of radius 6 cm is melted and drawn into a wire, whose radius of cross section is 8 cm. What is the length of the wire?
P invests Rs.3500 in a business. After 5 months, Q joins him with some investment. If the profit that Q gets is 50% more than that of P, then find the investment of Q.