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MATH / The lengths of two opposite sides of a square are decreased by 40% while the lengths of the other two sides are increased by 50% to form a rectangle. By what percent does the squar…

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problem

The lengths of two opposite sides of a square are decreased by 40%40\% while the lengths of the other two sides are increased by 50%50\% to form a rectangle. By what percent does the square's area decrease?
Plain-text mathematical notation (without MathML)
The lengths of two opposite sides of a square are decreased by 40% while the lengths of the other two sides are increased by 50% to form a rectangle. By what percent does the square's area decrease?
Original LaTeX notation
The lengths of two opposite sides of a square are decreased by $40\%$ while the lengths of the other two sides are increased by $50\%$ to form a rectangle. By what percent does the square's area decrease?

level

Level 4

type

Prealgebra

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Source and history

task_id
1fda28dc-4364-5e8b-ac00-7b8e49f12b92
task_key
prealgebra--test--1fda28dc-4364-5e8b-ac00-7b8e49f12b92
task_revision_id
1
config / split
prealgebra / test

Official source

initial import