Which of the following statement is correct?
I. Length of a rectangle is 15 cm more than its breadth. If its perimeter is 70 cm, then area of this rectangle is 250 cm2.
II. Radius of base and slant height of a cone are 10 cm and 21 cm respectively. Curved surface area of this cone is 660 cm2.
1
Only II
2
Neither I nor II
3
Both I and II
4
Only I