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Volume of tank = 30cm x 18cm x 24cm

= 12960cm³

= 12.96 litres

Remaining volume to be filled = 5/8 x 12.96 litres – 3.7 litres

=4.4 litres

=4 litres 400 millilitres

Answer: 4 litres 400 millilitres

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Total volume of tank -> 30 × 18 × 24 = 12960 ml

At first, (1 – 3/8) = 5/8 of it was empty

Volume of empty space -> 5/8 × 12960 = 8100 ml

After 3.7 l of water poured in,

Volume of empty space -> 8100 – 3700 = 4400 ml

 

Answer: 4 litre 400 ml

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