Built-up area
John build-up area 4.3 x 6.3 = 27.09 m2 with building with a wall thickness 25 cm. How many centimeters would he have to subtract from the thickness of the walls that the built-up area fell by 5%?
Correct answer:
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You need to know the following knowledge to solve this word math problem:
- algebra
- quadratic equation
- inequalities
- equation
- arithmetic
- comparing
- planimetrics
- area of a shape
- rectangle
- basic functions
- percentages
Units of physical quantities:
Grade of the word problem:
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