Quandaries
and Queries 

Dear Sir or Madam, I hope
you can help me out with a small problem. Thank you. 

Hi Phil, Your tank is 168 cm by 63 cm by 13 cm so the volume is
One cubic centimeter is one millilitre and hence the volume is 137.6 litres. There are 4.546 litres in an imperial gallon and thus your tank holds ^{137.6}/_{4.546} = 30.3 gallons. Cheers, 

