If the circumference of a circle is increased by 50% then

Home » Aptitude » Mensuration » Question

If the circumference of a circle is increased by 50% then the area will be increased by

1. 50%
2. 75%
3. 100%
4. 125%

Correct Option: D

Using Rule 10,
For an increase of 50% in the circumference of circle, the radius of circle should be increased by 50%.
Then, required percentage increase in the area of the circle

= 50 + 50 +	50 × 50
	100

= 100 + 25 = 125 %