Question

Joy makes 6.5 litres of soup, correct to the nearest 0.5 litre. She serves it the soup in 280ml portions, correct to the nearest 10ml. 22 people order this soup, Does joy definitely have enough soup to serve the 22 people

Answer 1

Joy definitely does have enough soup for 22 people.

Explanation:

Upper Bound: 285ml turn it to 0.285l 10÷2=5

280ml

Lower Bound: 275ml turn it to 0.275l

Upper Bound: 6.75l 0.5÷2=0.25

6.5 Litters

Lower Bound:6.25l

6.75÷0.275=24.54 or 25

6.25÷0.285=21.92 or 22

22 < 25 Joy definitely does have enough soup for 22 people.