IMC 2005 Q2
2. What is the difference between 10% of one million and 10% of one thousand?
- A 9 900
- B 9 990
- C 90 900
- D 99 900
- E 999 900
Intermediate Mathematical Challenge 2005, Question 2. © UK Mathematics Trust. Original paper on ukmt.org.uk
Answer: D 99 900
10% of one million is 100 000; 10% of one thousand is 100; 100 000 − 100 = 99 900.
Solution © UK Mathematics Trust, from the IMC 2005 solutions.