Given below are two quantities named A and B. Based on the given information, you have to determine the relation between the two quantities. You should use the given data and your knowledge of Mathematics to choose between the possible answers.
Quantity A: An amount of sum fetched a total simple interest of Rs. 800 at the rate of 8% per annum in 5 years. What is the sum?
Quantity B: 2000
Quantity A:$
Let the sum be P.
⇒ SI = P × r × t/100
⇒ 800 = P × 8 × 5/100
⇒ P = 2000
⇒ Sum = Rs. 2000
Quantity B: 2000
∴ Quantity A = Quantity$ B$4. If the radius of a sphere is tripled, then its surface area increased by