Statement I: If diameter of a sphere is decreased by 25%, then its curved surface area is decreased by 43.75%. |
Statement II: Curved surface area is increased when diameter decreases. |
A) Both Statement-I and Statement-II are true.
B) Statement-I is true but Statement-II is false.
C) Statement-I is false but Statement-II is true.
D) Both Statement-I and Statement-II are false.
Correct Answer: B
Solution :
Statement - I Let the diameter of sphere be 2r. Decreased diameter New diameter So, radius Curved surface area of sphere New curved surface area Now, decreased in surface area Statement II: If diameter is decreased, then curved surface area is also decreased.You need to login to perform this action.
You will be redirected in
3 sec