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  1. The length and breadth of a rectangle are increased by 12% and 15% respectively. Its area will be increased by :
    1. 27
      1
      		%
      5
    2. 28
      1
      		%
      5
    3. 27%
    4. 28%
Correct Option: B

Using Rule 10, Percentage increase in the area of rectangle

= 12 + 15 +
12 × 15
%
100

= 27 +
9
%
5

= 28
4
%
5


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