Three-quarters of its volume

The pool has a block shape with a length of 8m, a width of 5.3m and a depth of 1.5m. How many hl of water is in it if it is filled to three-quarters of its volume?

Correct result:

V =  477 hl

Solution:

a=8 m b=5.3 m c=1.5 m  V1=a b c=8 5.3 1.5=3185=63.6 m3 V2=V1hl=V1 10 hl=63.6 10 hl=636 hl  V=34 V2=34 636=477 hla=8 \ \text{m} \ \\ b=5.3 \ \text{m} \ \\ c=1.5 \ \text{m} \ \\ \ \\ V_{1}=a \cdot \ b \cdot \ c=8 \cdot \ 5.3 \cdot \ 1.5=\dfrac{ 318 }{ 5 }=63.6 \ \text{m}^3 \ \\ V_{2}=V_{1} \rightarrow hl=V_{1} \cdot \ 10 \ hl=63.6 \cdot \ 10 \ hl=636 \ hl \ \\ \ \\ V=\dfrac{ 3 }{ 4 } \cdot \ V_{2}=\dfrac{ 3 }{ 4 } \cdot \ 636=477 \ \text{hl}



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