A circular logo is enlarged to fit the lid of a jar. The new diameter is 30 per cent larger than the original. By what percentage has the area of the logo increased?	Choose the correct choice from the following answers:
A) 50 B) 80 C) 69 D) 125 E) 250
Let old diameter be 4 , so radius is 2   Old area = 4π   New diameter is 5.2 , so radius is 2.6   New area = 6.76π   Increase in area is 2.76π   % increase in area = 2.76/4*100   So, % increase is 69%   Answer will be (69)
<result>C</result>
A circular logo is enlarged to fit the lid of a jar. The new diameter is 30 per cent larger than the original. By what percentage has the area of the logo increased?