Higher June 2017 Paper 6 Q11

OCRHigherCurrent spec4 marksUpper & Lower Bounds

11 Sunil makes 7.5 litres of soup, correct to the nearest 0.5 litre.
He serves the soup in 300 ml portions, correct to the nearest 10 ml.
24 people order this soup.

Does Sunil definitely have enough soup to serve the 24 people?
Show how you decide. [4]