Rainfall

A rectangular garden of 25m in length and width 20m in width is filled with 4mm of water. Express by a fraction in basic form what part of the 60-hectolitre tank we would fill with this water.

Correct answer:

f =  1/3

Step-by-step explanation:

$$\begin{gathered} a=25\text{m} \\ b=20\text{m} \\ h=4\text{mm} \\ {V}_1=a\cdot b\cdot h=25\cdot 20\cdot 4=2000\text{l} \\ {V}_2=60\text{hl}\to \text{l}=60\cdot 100\text{l}=6000\text{l} \\ f=V_1/V_2=2000/6000=\frac{1}{3}=0.3333 \end{gathered}$$

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