# Rainwater

The garden area of 800 square meters fell 3mm of rainwater. How many 10 liters of water can we water this garden equally?

Result

n =  240

#### Solution:

$S = 800 \ m^2 \ \\ h = 3 \ mm = 3 / 1000 \ m = 0.003 \ m \ \\ \ \\ V = S \cdot \ h = 800 \cdot \ 0.003 = \dfrac{ 12 }{ 5 } = 2.4 \ m^3 \ \\ V_{ 1 } = V \rightarrow l = V \cdot \ 1000 \ l = 2400 \ l \ \\ V_{ 2 } = 10 \ l \ \\ \ \\ n = V_{ 1 }/V_{ 2 } = 2400/10 = 240$

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