The new length L' is increased by 20%, so L' = L + 0.20L = 1.20L. The new breadth B' is reduced by 20%, so B' = B - 0.20B = 0.80B. The new area A' = B) = 0.96 × A.
If the length of a rectangular field is increased by 20% and the breadth is reduced by 20%, the area of the rectangle will be 192 cm². What is the area of the original rectangle ?
Asked in GPSC Prelims CSP 1 2017 · Topic: General Concept (Spatial Distribution and Patterns (Fundamental Idea))
More World and Physical Geography questions
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