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

If diameter of a circle is increased by 40% then its area increased by

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%

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

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

If each edge of a cube is increased by 40%, the percentage increase in its surface area is

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%

If the circumference of a circle is increased by 20%, what will be the effect on the circle? (a) 40% increase (b) 44% increase (c) 48% increase (d) Cannot be determined (e) None of these

If cost of an object is increased by 40% and thendecreased by 20%. Find the % change in cost.