Question

if the length and breadth of a rectangle are doubled, by what persentage is the increased?
​

Answer 1

Answer:

300%

Step-by-step explanation:

Let initial length = l  

Initial breadth = b  

     initial area = lb  

Final length = 2l  

Final breadth = 2b  

      final area = (2l)(2b) = 4lb  

% increase = (increase)/(initial)*100  

% increase = (3lb)/(lb)*100  

% increase = 300 %