# Leveling

Calculate how many we must purchase 25 kg bags of leveling concrete if we level room 19 m

^{2}to the "height" 11 mm if consumption is 1.7 kg per square meter and millimeter thickness.## Correct answer:

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### You need to know the following knowledge to solve this word math problem:

**arithmetic**- rounding
**solid geometry**- cuboid
**planimetrics**- area of a shape
**basic functions**- reason
- inverse proportion
- direct proportionality

### Units of physical quantities:

### Grade of the word problem:

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