Question
Mathematics Question on types of differential equations
The inner and outer radius of a ring-shaped iron sheet of thickness 1 cm is 8 cm and 10 cm respectively. When it is melted to make a solid iron ball, its diameter will be 1 cm
A
3 cm
B
6 cm
C
12 cm
D
18 cm
Answer
6 cm
Explanation
Solution
The correct option is (B): 6 cm