Question

If the length of a rectangular plot of land is increased by 12 ½% and the breadth is decreased by 10%, then its area is

a. Decreased by 1.25%
b. Decreased by 2.5%
c. Increased by 2.5%
d. Increased by 1.25%

Answer 1

Answer:

Assuming

original length and breadth be 'l' and 'b' respectively.

original area = lb

modified area = 1.125 l × 0.9 b

% change in area

= 1.125×0.9-1

= 0.025 = 1.25 %

Step-by-step explanation:

Hope this helps you