A circular logo is enlarged to fit the lid of a jar. The new diameter is 60 per cent larger than the original. By what percentage has the area of the logo increased?	Select the correct option.
A) 50  B) 80  C) 100  D) 143.36  E) 250
Let old diameter be 4 , so radius is 2   Old area = 4π   New diameter is 6.24 , so radius is 3.12   New area = 9.7344π   Increase in area is 5.7344π   % increase in area = 5.7344/4*100   So, % increase is 143.36%   Answer will be (143.36)
<result>D</result>
A circular logo is enlarged to fit the lid of a jar. The new diameter is 60 per cent larger than the original. By what percentage has the area of the logo increased?