IMC 2009 Q3
3. Which of the following has the greatest value?
- A 50% of 10
- B 40% of 20
- C 30 % of 30
- D 20% of 40
- E 10% of 50
Intermediate Mathematical Challenge 2009, Question 3. © UK Mathematics Trust. Original paper on ukmt.org.uk
Answer: C 30 % of 30
The values of these expressions are 5, 8, 9, 8, 5 respectively.
Solution © UK Mathematics Trust, from the IMC 2009 solutions.