SOLUTION: A fish Tank has a length of 50cm, a breadth of 20cm and a height of 30cm. a) How many litres of water does the tank hold if the water is kept at a level of 5cm from the top. b) t

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Question 1128762: A fish Tank has a length of 50cm, a breadth of 20cm and a height of 30cm.
a) How many litres of water does the tank hold if the water is kept at a level of 5cm from the top.
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)
Found 2 solutions by addingup, ankor@dixie-net.com:
Answer by addingup(3677) (Show Source):
You can put this solution on YOUR website!
5 cm from the top means that the height of the water in the tank is 30 - 5 = 25.
So we now have: L=50; B=20; H=25
(note: "breadth" we would call "width" but I'll continue to use breadth because that's what you used)
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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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Question b can be answered in cm^2 but not in cm^3:
b) One L*B (the bottom, it doesn't have a top) = 50*20 = 1000 cm^2
Two sides: 20*30*2 = 1200 cm^2
Front and back: 30*50*2 = 3000 cm^2
Total: 1000+1200+3000 = 5200 cm^2

Answer by ankor@dixie-net.com(22740) (Show Source):
You can put this solution on YOUR website!
A fish Tank has a length of 50cm, a breadth of 20cm and a height of 30cm.
a) How many litres of water does the tank hold if the water is kept at a level of 5cm from the top.
the height of the water 5 cm from the top = 25 cm. 1 cu/cm = .001 liters
50*20*25*.001 = 25 liters of water
:
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)? sq/cm
2(30*50) + 2(30*20) + (50*20) =
2(1500) + 2(600) + 1000 = 5200 sq/cm