If diameter of a circle is increased by 40%, then its area increases by (a) 96% (b) 40% (c) 80% (d) 48%

If the radius of a circle is increased by 200%, then its area will increase by (a) 200% (b) 400% (c) 800% (d) 900%

If the radius of a circle is increased by 6%, then the area is increased by (a) 6% (b) 12% (c) 12.36% (d) 16.64%

If the radius of a circle is increased by 75%, then its circumference will increase by (a) 25% (b) 50% (c) 75% (d) 100%

If each side of a rectangle is increased by 50%, its area will increase by (a) 50% (b) 125% (c) 150% (d) 200%

If the side of an equilateral triangle is decreased by 20%, its area is decreased by (a) 36% (b) 40% (c) 60% (d) 64%

In each of the dimensions of a rectangle is increased by 100%, its area is increased by (A) 100% (B) 200% (C) 300% (D) 400%

If each side of a square is increased by 10%, its area will be increased by (a) 10% (b) 21% (c) 44% (d) 100%

If both the radius and height of a right circular cone are increased by 20%, its volume will be increased by (a) 20% (b) 40% (c) 60% (d) 72.8%

On increasing the diameter of a circle by 40% its area will be increased by