A reservoir is in the form of a rectangular parallelepiped.its length is 20m.if 18kl of water is removed from reservoir,the water level goes down by 15cm.find the width of the reservoir.

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Solution

Dimensions of rectangular parallelo piped reservoir,

L = 20 m

B = b (say)

h = 15 cm = 0.15 m

Volume of water removed = 18 KL = 18 m³
$V o l u m e o f r e c t a c g u l a r p a r a l l e l o p i p e = l \times b \times h 18 = 20 \times b \times . 15 18 = 3 b b = 6 m S o, t h e w i d t h o f t h e r e s e r v o i r i s 6 m$

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A reservoir is in the form of a rectangular parallelepiped.its length is 20m.if 18kl of water is removed from reservoir,the water level goes down by 15cm.find the width of the reservoir.

Dimensions of rectangular parallelo piped reservoir, L = 20 m B = b (say) h = 15 cm = 0.15 m Volume of water removed = 18 KL = 18 m3 Volume of rectacgular parallelopipe = l×b×h18 = 20×b×.1518 = 3bb = 6 mSo, the width of the reservoir is 6 m