The-external-length-width-and-height-of-an-open-rectangular-container-are-41cm-21cm-and-15-5cm-respectively-The-thickness-of-the-material-making-the-container-is-5mm-If-the-container-has-8litres-of-w

Question Number 66985 by Mr Jor last updated on 21/Aug/19

The external length, width and height

of an open rectangular container are

41 cm, 21 cm and 15 . 5 cm respectively .

The thickness of the material making

the container is 5 mm . If the container

has 8 litres of water, calculate the

internal height above the water level .

A n s : 5 c m

Answered by mr W last updated on 22/Aug/19

i n t e r n a l l e n g t h = e x t e r n a l - 2 \times t h i c k n e s s

L_{i} = 41 - 2 \times 0.5 = 40 c m

W_{i} = 21 - 2 \times 0.5 = 20 c m

i n t e r n a l h e i g h t = e x t e r n a l - t h i c k n e s s

H_{i} = 15.5 - 0.5 = 15 c m

d e p t h o f w a t e r = \frac{8000}{40 \times 20} = 10 c m

h e i g h t a b o v e w a t e r l e v e l = 15 - 10 = 5 c m

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