document.write( "Question 1128762: A fish Tank has a length of 50cm, a breadth of 20cm and a height of 30cm.
\n" ); document.write( "a) How many litres of water does the tank hold if the water is kept at a level of 5cm from the top.
\n" ); document.write( "b) the bottom and sides of the tank are glass but it has no top. What is the Total area of the glass used to make the tank (in cm3)
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Algebra.Com's Answer #745295 by addingup(3677)\"\" \"About 
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5 cm from the top means that the height of the water in the tank is 30 - 5 = 25.
\n" ); document.write( "So we now have: L=50; B=20; H=25
\n" ); document.write( "(note: \"breadth\" we would call \"width\" but I'll continue to use breadth because that's what you used)
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\n" ); document.write( "a) At a level of 5 cm from the top the tank holds (volume): 50*20*25 = 25000 cm^3 of water = 250 m^3
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\n" ); document.write( "Question b can be answered in cm^2 but not in cm^3:
\n" ); document.write( "b) One L*B (the bottom, it doesn't have a top) = 50*20 = 1000 cm^2
\n" ); document.write( "Two sides: 20*30*2 = 1200 cm^2
\n" ); document.write( "Front and back: 30*50*2 = 3000 cm^2
\n" ); document.write( "Total: 1000+1200+3000 = 5200 cm^2
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