Answer:
Explanation:
Volume of the cylindrical tank = πr²h
= 3.14 * 100 * 100 * 250
= 7850000 cm³
Volume of half tank = 7850000 ÷ 2
= 3925000 cm³
1000 cm³ = 1 litre
3925000 = 3925000 ÷ 1000
= 3925 litre
= 4000 litre
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