Pipes & Cisterns · Question 3 · Easy
A pipe fills a 1,200-litre tank in 4 hours. At the same rate, how many litres does it fill in 90 minutes?
- 450 litres
- 300 litres
- 400 litres
- 600 litres
Answer and explanation
Answer: A. 450 litres
Explanation: Rate = 1,200 ÷ 4 = 300 litres per hour. In 1.5 hours it fills 300 × 1.5 = 450 litres.
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