A rectangular tank measures 40 cm by 25 cm by 30 cm. It is filled with water to a height of 18 cm. Auntie Lim then pours in another 6 litres of water. What is the final volume of water in the tank? (1 litre = 1 000 cm³)
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Worked Solution
Step 1: Find the initial volume of water in cm³.
40 × 25 × 18 = 18 000 cm³
Step 2: Convert the additional water to cm³.
6 litres = 6 × 1 000 = 6 000 cm³
Step 3: Add to find total volume of water.
18 000 + 6 000 = 24 000 cm³
Step 4: Convert to litres.
24 000 ÷ 1 000 = 24 litres
Check: final water height = 24 000 ÷ (40 × 25) = 24 cm < 30 cm (no overflow) ✓
Answer: 24 L
Correct answer: 24 L
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