Discussion
The area of the base of a rectangular tank is 6500 cm² and the volume of water contained in it is 2.6 cubic meters. The depth of water in the tank is:
Answer: B
Convert the volume to cubic centimetres to match the base area.
\[ 2.6 \text{ m}^{3} = 2.6 \times 1{,}000{,}000 = 2{,}600{,}000 \text{ cm}^{3} \]
\[ \text{depth} = \frac{2{,}600{,}000}{6500} = 400 \text{ cm} = 4 \text{ m} \]
A cubic metre is a million cubic centimetres, not ten thousand - the factor that decides the answer.
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