Practicing Success

Target Exam

CUET

Subject

-- Mathematics - Section A

Chapter

Applications of Derivatives

Question:

The volume of a cube is increasing at a rate of 3 cubic centimeters per second. How fast is the surface area increasing when the length of an edge is 10 centimeters?

Options:

3.6 cm2/s

1.2 cm2/s

4.8 cm2/s

5.0 cm2/s

Correct Answer:

1.2 cm2/s

Explanation:

\[\frac{1}{ { x }^{ 2 } }\]dx/dt =