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| Math Central | Quandaries & Queries |
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Question from alex: I have a tank which I can only partly see. It is 70cms wide, 45 cm deep and hold 500litres. How long is it? |
Hi Alex,
If the length is x cm then the volume is 70 × 45 × x = 3150 × x cubic centimetres. A cubic centimetre is a millilitre and there are 1000 litres in a litre so the volume is 3150 × x ml = 3.150 × x litres. Since your tank has a volume of 500 litres
3.150 × x = 500
so
x = 500/3.150 = 558.7 centimeters.
Harley
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